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Dr. B. T. S. Ramanujam

Associate Professor, Department of Physics, School of Physical Sciences, Coimbatore

Qualification: M.Tech., MSc, Ph.D
bts_ramanujam@cb.amrita.edu
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Research Interest: Structure-Property Correlation in Conducting Polymer Nanocomposites, Polymer Blends, Conducting polymer based energy storage and energy harvesting materials, Nanogenerators, Bio-degradable polymers, Synthesis of carbon nanostructures and metal oxides

Bio Publications Qualification Experience Research Achievements Teaching Projects Guided Conferences Attended
Bio

Dr. B. T. S. Ramanujam currently serves as Associate Professor at the Department of Physics, Amrita School of Physical Sciences, Coimbatore.

Publications

Journal Article

Year : 2026

PMMA assisted filler dispersion and morphology control in multifunctional PVDF based blend nanocomposites for absorption dominant EMI shielding and energy harvesting

Cite this Research Publication : Nikhitha Augustin, Amit Malakar, Suryasarathi Bose, Rajkumar Patel, Pratheep Kumar Annamalai, Ramanujam Brahmadesam Thoopul Srinivasa Raghava, PMMA assisted filler dispersion and morphology control in multifunctional PVDF based blend nanocomposites for absorption dominant EMI shielding and energy harvesting, Results in Engineering, Elsevier BV, 2026, https://doi.org/10.1016/j.rineng.2026.110114

Publisher : Elsevier BV

Year : 2026

Shaping Micelles, Targeting Cancer: The Power of Block Copolymer Architectures

Cite this Research Publication : Seojin Park, Gayatri Patel, Bandana Padhan, Joyjyoti Das, Ramanujam Brahmadesam Thoopul Srinivasa Raghava, Madhumita Patel, Shaping Micelles, Targeting Cancer: The Power of Block Copolymer Architectures, Macromolecular Bioscience, Wiley, 2026, https://doi.org/10.1002/mabi.70174

Publisher : Wiley

Year : 2026

Polymeric nanofiber systems for the encapsulation and delivery of biological entities in food, pharmaceutical, and biomedical fields

Cite this Research Publication : Rajkumar Patel, Pratheep Kumar Annamalai, Ramanujam Brahmadesam Thoopul Srinivasa Raghava, Madhumita Patel, Polymeric nanofiber systems for the encapsulation and delivery of biological entities in food, pharmaceutical, and biomedical fields, Reactive and Functional Polymers, Elsevier BV, 2026, https://doi.org/10.1016/j.reactfunctpolym.2025.106552

Publisher : Elsevier BV

Year : 2025

Engineered Poly(vinylidene fluoride) (PVDF)-Based Nanocomposites with Metal Ion (Al, Ag, Mg)-Doped Zinc Oxide (ZnO) Nanoparticles for Efficient Oil Sorption Application

Cite this Research Publication : Daphne Mary John, Sreekanth Kaduvallil Mahadeva, Sivasubramanian Ganarajan, Pratheep Kumar Annamalai, Ramanujam Brahmadesam Thoopul Srinivasa Raghava, Engineered Poly(vinylidene fluoride) (PVDF)-Based Nanocomposites with Metal Ion (Al, Ag, Mg)-Doped Zinc Oxide (ZnO) Nanoparticles for Efficient Oil Sorption Application, ACS Omega, American Chemical Society (ACS), 2025, https://doi.org/10.1021/acsomega.5c07302

Publisher : American Chemical Society (ACS)

Year : 2025

Influence of Biodegradable Poly(lactic acid) in Poly(vinylidene fluoride)-Based Conducting Multifunctional Blend Nanocomposites on the Structure, Morphology, Electrical, Electromagnetic Interference Shielding, and Piezoelectric Properties

Cite this Research Publication : Nikhitha Augustin, Vaishak Gopakumar, Kanya Koothanatham Senthilkumar, Aleena Sabu, Pratheep Kumar Annamalai, Ramanujam Brahmadesam Thoopul Srinivasa Raghava, Influence of Biodegradable Poly(lactic acid) in Poly(vinylidene fluoride)-Based Conducting Multifunctional Blend Nanocomposites on the Structure, Morphology, Electrical, Electromagnetic Interference Shielding, and Piezoelectric Properties, ACS Applied Polymer Materials, American Chemical Society (ACS), 2025, https://doi.org/10.1021/acsapm.4c02915

Publisher : American Chemical Society (ACS)

Year : 2025

Recent Advancements in Na Super Ionic Conductor-Incorporated Composite Polymer Electrolytes for Sodium-Ion Battery Application

Cite this Research Publication : Kanya Koothanatham Senthilkumar, Rajagopalan Thiruvengadathan, Ramanujam Brahmadesam Thoopul Srinivasa Raghava, Recent Advancements in Na Super Ionic Conductor-Incorporated Composite Polymer Electrolytes for Sodium-Ion Battery Application, Electrochem, MDPI AG, 2025, https://doi.org/10.3390/electrochem6010006

Publisher : MDPI AG

Year : 2025

Morphology-driven multifunctionality: tailoring ZnO for enhanced EMI shielding and energy harvesting in PVDF/MWCNT nanocomposites

Cite this Research Publication : Aleena Sabu, Pooja U., Meera B. Nair, Dinesh K. Shukla, Rajkumar Patel, Pratheep Kumar Annamalai, Amit Malakar, Suryasarathi Bose, Ramanujam Brahmadesam Thoopul Srinivasa Raghava, Morphology-driven multifunctionality: tailoring ZnO for enhanced EMI shielding and energy harvesting in PVDF/MWCNT nanocomposites, Nanoscale, Royal Society of Chemistry (RSC), 2025, https://doi.org/10.1039/d5nr03391h

Publisher : Royal Society of Chemistry (RSC)

Year : 2025

Unraveling the Role of Molecular Weight of Poly(ethylene Oxide) (PEO) on the Ionic Conductivity of Poly(vinylidene Fluoride) (PVDF)‐PEO Blend‐Based Sodium‐Ion Conducting Solid Polymer Electrolyte

Cite this Research Publication : Kanya Koothanatham Senthilkumar, Rajagopalan Thiruvengadathan, Ramanujam Brahmadesam Thoopul Srinivasa Raghava, Unraveling the Role of Molecular Weight of Poly(ethylene Oxide) (PEO) on the Ionic Conductivity of Poly(vinylidene Fluoride) (PVDF)‐PEO Blend‐Based Sodium‐Ion Conducting Solid Polymer Electrolyte, Energy Technology, Wiley, 2025, https://doi.org/10.1002/ente.202500834

Publisher : Wiley

Year : 2025

Progress in Zinc Oxide‐Based Polymer Nanocomposites for Advancing Piezoelectric Energy Harvesting and Self‐Powered Devices

Cite this Research Publication : Daphne Mary John, Pratheep Kumar Annamalai, Alireza Hosseinmardi, Sreekanth Kaduvallil Mahadeva, Kothandaraman Ramanujam, Raghuram Chetty, Rajkumar Patel, Ramanujam Brahmadesam Thoopul Srinivasa Raghava, Ashok Kumar Nanjundan, Progress in Zinc Oxide‐Based Polymer Nanocomposites for Advancing Piezoelectric Energy Harvesting and Self‐Powered Devices, Macromolecular Materials and Engineering, Wiley, 2025, https://doi.org/10.1002/mame.202500239

Publisher : Wiley

Year : 2025

Tailoring electromagnetic interference shielding, electrical and thermal properties of poly(vinylidene fluoride) based hybrid nanocomposites with carbon nanofiber and magnetite nanoparticles

Cite this Research Publication : Aleena Sabu, Sabarish Narayanan B., Pratheep Kumar Annamalai, Ramanujam Brahmadesam Thoopul Srinivasa Raghava, Tailoring electromagnetic interference shielding, electrical and thermal properties of poly(vinylidene fluoride) based hybrid nanocomposites with carbon nanofiber and magnetite nanoparticles, Journal of Materials Chemistry C, Royal Society of Chemistry (RSC), 2025, https://doi.org/10.1039/d4tc02880e

Publisher : Royal Society of Chemistry (RSC)

Year : 2024

Surfactant assisted tuning of electrical conductivity, electromagnetic interference shielding effectiveness, wetting properties of poly(lactic acid)-expanded graphite-magnetite nanocube hybrid bio-nanocomposites

Cite this Research Publication : Keerthana P Balakrishnan, Kanya Koothanatham Senthilkumar, Gokila N, Rajendra Kumar Ramasamy Thangavelu, Pratheep Kumar Annamalai, Ramanujam Brahmadesam Thoopul Srinivasa Raghava, Surfactant assisted tuning of electrical conductivity, electromagnetic interference shielding effectiveness, wetting properties of poly(lactic acid)-expanded graphite-magnetite nanocube hybrid bio-nanocomposites, European Polymer Journal, Elsevier BV, 2024, https://doi.org/10.1016/j.eurpolymj.2024.113135

Publisher : Elsevier BV

Year : 2024

Unravelling the role of poly(methyl methacrylate) (PMMA) molecular weight in poly(vinylidene fluoride) (PVDF)/PMMA/expanded graphite (ExGr) blend nanocomposites: Insights into morphology, thermal behavior, electrical conductivity, and wetting property

Cite this Research Publication : Nikhitha Augustin, Pranesh Muraliharan, Aleena Sabu, Kanya Koothanatham Senthilkumar, Pratheep Kumar Annamalai, Ramanujam Brahmadesam Thoopul Srinivasa Raghava, Unravelling the role of poly(methyl methacrylate) (PMMA) molecular weight in poly(vinylidene fluoride) (PVDF)/PMMA/expanded graphite (ExGr) blend nanocomposites: Insights into morphology, thermal behavior, electrical conductivity, and wetting property, Journal of Thermoplastic Composite Materials, SAGE Publications, 2024, https://doi.org/10.1177/08927057241238203

Publisher : SAGE Publications

Year : 2024

Sulphanilamide degradation by undoped and copper doped ZnO, and ferromagnetic properties of fresh, aged, and heat-treated aged ZnO

Cite this Research Publication : Ramanujam Brahmadesam Thoopul Srinivasa Raghava, Daphne Mary John, Sreerag Kaaliveetil Yadhu J. NairG. Sivasubramanian, K.M. Sreedhar,  K.M. Sreekanth, Sulphanilamide degradation by undoped and copper doped ZnO, and ferromagnetic properties of fresh, aged, and heat-treated aged ZnO, Research articleVolume 10, Issue 23e40833December 15, 2024

Year : 2023

Polyvinylidene fluoride (PVDF)-Polyethylene oxide(PEO) polymer blend-based solid electrolyte for Na+ battery applications

Cite this Research Publication : Kanya K S, Nikhitha Augustin, B.T.S Ramanujam, Polyvinylidene fluoride (PVDF)-Polyethylene oxide(PEO) polymer blend-based solid electrolyte for Na+ battery applications, Advanced Polymer Design and Development Research Laboratory (APDDRL), CIPET, Bangalore, March 17-19, 2023

Year : 2023

Effect of Polyvinylpyrrolidone on the Structure Development, Electrical, Thermal, and Wetting Properties of Polyvinylidene Fluoride-Expanded Graphite Nanocomposites

Cite this Research Publication : Haridass, R., Sabu, A., Augustin, N., Annamalai, P. K., &Brahmadesam Thoopul Srinivasa Raghava, R. (2023). Effect of Polyvinylpyrrolidone on the Structure Development, Electrical, Thermal, and Wetting Properties of Polyvinylidene Fluoride-Expanded Graphite Nanocomposites. ACS omega, 9(1), 178-195

Publisher : ACS omega

Year : 2022

Polyvinylidene fluoride‐natural graphite flexible composite films: Formation of graphite nanosheets, electroactive phase, analysis of electrical and thermal properties

Cite this Research Publication : J Ayyappan, Niranjan Haridas Menon, Aleena Sabu, BTS Ramanujam, "Polyvinylidene fluoride‐natural graphite flexible composite films: Formation of graphite nanosheets, electroactive phase, analysis of electrical and thermal properties", Polymers for Advanced Technologies Volume 33 Issue 12 Pages 3997-4011, 2022

Publisher : John Wiley & Sons, Ltd.

Year : 2022

Polyvinylidene fluoride‐poly (vinyl acetate)‐natural graphite blend nanocomposites: Investigations of electroactive phase formation, electrical, thermal, and wetting properties

Cite this Research Publication : Haridas Menon, N, Sabu, A, B. T. S., R. Polyvinylidene fluoride-poly(vinyl acetate)-natural graphite blend nanocomposites: Investigations of electroactive phase formation, electrical, thermal, and wetting properties. Polym Adv Technol. 2022; 33( 12): 4023- 4040. doi:10.1002/pat.5833

Publisher : John Wiley & Sons, Ltd.

Year : 2022

Nanoclay-based Polymer Nanocomposites for Electromagnetic Interference Shielding

Cite this Research Publication : MR Nigil, BTS Ramanujam, R Thiruvengadathan, "Nanoclay-based Polymer Nanocomposites for Electromagnetic Interference Shielding", Adv. Appl. Micro Nano Clay II Synth. Polym. Compos Volume 129 Pages 53-78, 2022

Year : 2021

Investigations of structure development, electrical and thermal properties of polyvinylidene fluoride-expanded graphite nanocomposites

Cite this Research Publication : Ramanujam, B.T.S., Gopalakrishnan, C. Investigations of structure development, electrical and thermal properties of polyvinylidene fluoride-expanded graphite nanocomposites. Bull Mater Sci 44, 66 (2021). https://doi.org/10.1007/s12034-021-02354-0

Publisher : Indian Academy of Sciences

Year : 2021

Effect of casting solvent on the structure development, electrical, thermal behavior of polyvinylidene fluoride (PVDF)–carbon nanofiber (CNF) conducting binary and hybrid nanocomposites

Cite this Research Publication : Ramanujam, B.T.S., Adhyapak, P.V., Radhakrishnan, S. et al. Effect of casting solvent on the structure development, electrical, thermal behavior of polyvinylidene fluoride (PVDF)–carbon nanofiber (CNF) conducting binary and hybrid nanocomposites. Polym. Bull. 78, 1735–1751 (2021). https://doi.org/10.1007/s00289-020-03176-6

Publisher : Springer Berlin Heidelberg

Year : 2020

Polyvinylidene fluoride (PVDF)-poly (methyl methacrylate)(PMMA)-expanded graphite (ExGr) conducting polymer blends: Analysis of electrical and thermal behavior

Cite this Research Publication : M Sachin, Reshma Haridass, BTS Ramanujam, "Polyvinylidene fluoride (PVDF)-poly (methyl methacrylate)(PMMA)-expanded graphite (ExGr) conducting polymer blends: Analysis of electrical and thermal behavior", Materials Today: Proceedings Volume 28 Pages 103-107, 2020

Publisher : Materials Today: Proceedings

Year : 2018

Effect of oxidizing agents on the expansion characteristics of natural graphite

Cite this Research Publication : Abhishek Trivedi, Namita Pisharath, B.T.S. Ramanujam,
Effect of Oxidizing Agents on the Expansion Characteristics of Natural Graphite,
Materials Today: Proceedings,
Volume 5, Issue 8, Part 3,
2018,
Pages 16695-16702,
ISSN 2214-7853,
https://doi.org/10.1016/j.matpr.2018.06.033.

Publisher : Elsevier

Year : 2017

Polypropylene-based conducting nanocomposites: effect of aspect ratio of second conducting filler on the electrical percolation

Cite this Research Publication : Ramanujam B, Radhakrishnan S, Deshpande S. Polypropylene-based conducting nanocomposites: Effect of aspect ratio of second conducting filler on the electrical percolation. Journal of Thermoplastic Composite Materials. 2017;30(6):840-854. doi:10.1177/0892705715614063

Publisher : SAGE Publications

Year : 2017

Polyphenylene sulfide-expanded graphite nanocomposites: processing route dependent electrical percolation

Cite this Research Publication : Ramanujam B, Radhakrishnan S, Deshpande S. Polyphenylene sulfide- expanded graphite nanocomposites: Processing route dependent electrical percolation. Journal of Thermoplastic Composite Materials. 2017;30(12):1603-1614. doi:10.1177/0892705716646420

Publisher : SAGE Publications

Year : 2017

Analysis of electrical and thermal conductivities of polyethersulfone-graphite based hybrid nanocomposites

Cite this Research Publication : Ramanujam, B.T.S., Radhakrishnan, S. & Deshpande, S.D. Analysis of electrical and thermal conductivities of polyethersulfone-graphite based hybrid nanocomposites. Macromol. Res. 25, 311–316 (2017). https://doi.org/10.1007/s13233-017-5045-5

Publisher : The Polymer Society of Korea

Year : 2015

Solution-blended polyethersulfone–graphite hybrid composites: formation of nanographite and electrical characterization

Cite this Research Publication : Ramanujam B, Radhakrishnan S. Solution-blended polyethersulfone–graphite hybrid composites: Formation of nanographite and electrical characterization. Journal of Thermoplastic Composite Materials. 2015;28(6):835-848. doi:10.1177/0892705713518784

Publisher : SAGE Publications

Year : 2010

Polyphenylene sulfide-graphite hybrid composites: Charge transport and impedance characteristics

Cite this Research Publication : Ramanujam BTS, "Polyphenylene sulfide-graphite hybrid composites: Charge transport and impedance characteristics", 2010

Publisher : Central Institute of Plastics Engineering & Technology

Year : 2010

Polyphenylene sulfide-graphite hybrid composites: Charge transport and impedance characteristics

Cite this Research Publication : Ramanujam, B.T.S., Radhakrishnan, S. Polyphenylene sulfide-graphite hybrid composites: Charge transport and impedance characteristics. Int J Plast Technol 14 (Suppl 1), 37–44 (2010). https://doi.org/10.1007/s12588-010-0008-0

Publisher : Springer-Verlag

Year : 2010

Polyethersulfone-expanded graphite nanocomposites: charge transport and impedance characteristics

Cite this Research Publication : BTS Ramanujam, Rajashree Y Mahale, S Radhakrishnan, "Polyethersulfone-expanded graphite nanocomposites: charge transport and impedance characteristics", Composites Science and Technology Volume 70 Issue 14 Pages 2111-2116, 2010

Publisher : Elsevier

Year : 2009

Electrical properties of conducting polyphenylene sulfide graphite hybrid composites

Cite this Research Publication : Ramanujam BTS, Kanchan Nehete, "Electrical properties of conducting polyphenylene sulfide graphite hybrid composites", 2009

Publisher : Macmillan Publishers India

Year : 2007

High-temperature, polymer–graphite hybrid composites for bipolar plates: effect of processing conditions on electrical properties

Cite this Research Publication : S Radhakrishnan, BTS Ramanujam, A Adhikari, S Sivaram, "High-temperature, polymer–graphite hybrid composites for bipolar plates: effect of processing conditions on electrical properties", Journal of Power Sources Volume 163 Issue 2 Pages 702-707

Publisher : Elsevier

Year : 2001

WRONG SIZE EFFECT IN NaCl-LiCI MIXED CRYSTALS

Cite this Research Publication : BTS Ramanujam, K Shahi, "WRONG SIZE EFFECT IN NaCl-LiCI MIXED CRYSTALS", Ion Conducting Materials: Theory and Applications Pages 9, 2001

Publisher : Alpha Science Int'l Ltd.

Year : 1997

A fresh study of potential energy functions

Cite this Research Publication : S Durai, BTS Ramanujam, "A fresh study of potential energy functions", ACTA CIENCIA INDICA PHYSICS Volume 23 Pages 225-226, 1997

Publisher : PRAGATI PRAKASHAN MEERUT

Book Chapter

Year : 2025

189Chapter 8 Role of Surfactants on Interfacial Characteristics, Electrical, Mechanical, and Thermal Properties of Polymer Nanocompositespolymer nanocomposites

Cite this Research Publication : Kanya Koothanatham Senthilkumar, Ramanujam Brahmadesam Thoopul Srinivasa Raghava, Pratheep Kumar Annamalai, 189Chapter 8 Role of Surfactants on Interfacial Characteristics, Electrical, Mechanical, and Thermal Properties of Polymer Nanocompositespolymer nanocomposites, Polymer Interfacial Characteristics, De Gruyter, 2025, https://doi.org/10.1515/9783110714012-008

Publisher : De Gruyter

Year : 2021

Synthesis and Characterization of Carbon Nanostructures

Cite this Research Publication : Rajagopalan Thiruvengadathan, BTS Ramanujam, "Synthesis and Characterization of Carbon Nanostructures", Carbon Nanostructures: Fundamentals to Applications Pages 2-1-2-30, 2021

Publisher : AIP Publishing LLC

Year : 2021

Carbon Nanostructures and Their Desirable Functionalization for Energy Harvesting

Cite this Research Publication : BTS Ramanujam, Aleena Sabu, Reshma Haridass, Rajagopalan Thiruvengadathan, "Carbon Nanostructures and Their Desirable Functionalization for Energy Harvesting", 2021

Year : 2021

Conducting polymer nanocomposites with carbon nanostructures as advanced emi shielding materials: recent advancements and challenges

Cite this Research Publication : B. T. S. Ramanujam, Aleena Sabu, M. Pranesh, Rajagopalan Thiruvengadathan, "Conducting Polymer Nanocomposites with Carbon Nanostructures as Advanced EMI Shielding Materials: Recent Advancements and Challenges", Carbon Nanostructures: Fundamentals to Applications, Rajagopalan Thiruvengadathan, Somnath C. Roy, Poonam Sundriyal, Shantanu Bhattacharya

Conference Proceedings

Year : 2023

Processing routes on the structure development in polyvinylidene fluoride (PVDF)-zinc oxide (ZnO) nanocomposites prepared by different processing routes

Cite this Research Publication : Daphne Mary John, B.T.S. Ramanujam, “Processing routes on the structure development in polyvinylidene fluoride (PVDF)-zinc oxide (ZnO) nanocomposites prepared by different processing routes”, in an international conference on Modern functional materials and it’s multifunctional applications (ICMFM 2023) held at Erode Sengunthar Engineering College, Tamilnadu on 21st and 22nd July, 2023

Year : 2023

Synthesis and electrical properties of polyaniline (PANI) based conducting hybrid nanocomposites

Cite this Research Publication : Lavaneethan T and B.T.S. Ramanujam, Synthesis and electrical properties of polyaniline (PANI) based conducting hybrid nanocomposites, International Hybrid conference on Nanostructured materials and polymers, MG University, Kottayam, Kerala, May 12 - 14,2023

Year : 2023

Synthesis and characterization of electroactive polyvinylidene fluoride (PVDF)-zinc oxide (ZnO) nanocomposites

Cite this Research Publication : Aleena Sabu, B.T.S Ramanujam, Synthesis and characterization of electroactive polyvinylidene fluoride (PVDF)-zinc oxide (ZnO) nanocomposites, International Hybrid conference on Nanostructured materials and polymers, MG University, Kottayam, Kerala, May 12 - 14,2023

Year : 2023

Polyvinylidene fluoride-graphite-based conducting nanocomposites: Effect of Magnetite nanoparticles on the electrical properties

Cite this Research Publication : Aleena Sabu, Aravind Menon, Nikhitha Augustin, Lavaneethan, B.T.S Ramanujam, Polyvinylidene fluoride-graphite-based conducting nanocomposites: Effect of Magnetite nanoparticles on the electrical properties, Advanced Polymer Design and Development Research Laboratory (APDDRL), CIPET, Bangalore, March 17-19, 2023

Book

Year : 2023

Electroactive Polymers and Their Carbon Nanocomposites for Energy Harvesting

Cite this Research Publication : Ramanujam, B.T.S., Haridass, Reshma, Muralidharan, Pranesh, Nanjundan, Ashok Kumar, Dubal, Deepak, and Annamalai, Pratheep K. (2023). Electroactive polymers and their carbon nanocomposites for energy harvesting. Nanogenerators: basic concepts, design strategies, and applications. Edited by Inamuddin, Mohd Imran Ahamed, Rajender Boddula, and Tariq Altalhi. Boca Raton, FL, United States: CRC Press.361-396

Publisher : CRC Press

Year : 2021

Nanocellulose-based carbon as electrode materials for sodium-ion batteries

Cite this Research Publication : B.T.S. Ramanujam, Ashok Kumar Nanjundan, Pratheep K. Annamalai, "Chapter 12 - Nanocellulose-based carbon as electrode materials for sodium-ion batteries", Editor(s): Sabu Thomas, Yasir Beeran Pottathara, In Micro and Nano Technologies, Nanocellulose Based Composites for Electronics, Elsevier, 2021, Pages 295-312, ISBN 9780128223505,
https://doi.org/10.1016/B978-0-12-822350-5.00012-6.
(https://www.sciencedirect.com/science/article/pii/B9780128223505000126)

Publisher : Elsevier

Year : 2017

Electrical Properties of Conducting Polymer‐MWCNT Binary and Hybrid Nanocomposites

Cite this Research Publication : BTS Ramanujam, S Radhakrishnan, "Electrical Properties of Conducting Polymer‐MWCNT Binary and Hybrid Nanocomposites", Trends and Applications in Advanced Polymeric Materials Pages 127-143, 2017

Publisher : John Wiley & Sons, Inc.

Year : 2017

Conducting polymer–graphite binary and hybrid composites: Structure, properties, and applications

Cite this Research Publication : BTS Ramanujam, Pratheep K Annamalai, "Conducting polymer–graphite binary and hybrid composites: Structure, properties, and applications", Hybrid Polymer Composite Materials Pages 1-34, 2017

Publisher : Hybrid Polymer Composite Materials

Year : 2017

Conducting polymer–graphite binary and hybrid composites: Structure, properties, and applications

Cite this Research Publication : BTS Ramanujam, Pratheep K Annamalai, "Conducting polymer–graphite binary and hybrid composites: Structure, properties, and applications", Hybrid Polymer Composite Materials Pages 1-34, 2017

Publisher : Woodhead Publishing

Qualification
Degree University
Ph.D Physics (Conducting Polymer Composites) National Chemical Laboratory/Pune University, Pune, 2006-2011
M.Tech Materials Science Dissertation: Wrong Size Effect in NaCl-LiCl mixed crystals (Solid Electrolytes) Indian Institute of Technology, Kanpur, Uttar Pradesh, 1998 – 2000
M.Sc Physics Dissertation: A Fresh study of Potential Energy Functions for Diatomic Molecules A.M. Jain College/Madras University, Chennai, Tamil Nadu, 1995-1997
B.Sc Physics D.G. Vaishnav College, Chennai, Tamil Nadu, 1992-1995
Experience
Position Held Institute/University
Assistant Professor (SG) Department of Sciences, Amrita Vishwa Vidyapeetham, Coimbatore, Tamil Nadu. 01st July 2021 to till date
Assistant Professor (Sr. Gr) Department of Sciences, Amrita Vishwa Vidyapeetham, Coimbatore, Tamil Nadu. 19th June 2017 – 31st June 2021
Assistant Professor School of Engineering and Technology, Navrachana University, Vadodara, Gujarat 29th June 2012- 26th May 2017.
Post Doctoral Researcher Behr Process Paints (India) Pvt. Ltd., Pune, Maharashtra. (US based MNC-A MASCO Company) 01st February 2011- 31st January 2012
Senior Chemist Behr Process Paints (India) Pvt. Ltd., Pune, India (US based MNC- A MASCO Company) 01st February 2012 – 07th June 2012
Technical Officer Central Institute of Plastics Engineering and Technology (CIPET), Bhubaneswar, Orissa. 24th May 2010 – 16th January 2011
Junior and Senior Research Fellow Polymer Science and Engineering Division, National Chemical Laboratory, Pune December 2004 – May 2006
Guest Worker Polymer Science and Engineering Division, National Chemical Laboratory, Pune. January 2004 – October 2004
Guest Scientist Department of Physics, Freiburg University, Freiburg, Germany June 2003- October 2003
Senior Research Fellow (CSIR) Department of Physics, Indian Institute of Technology, Madras September 2000 – February 2002
Research

Research Interests

  1. Structure-property correlation in conducting polymer composites
  2. Electroactive polymer based nanogenerators
  3. Inherently conducting polymer hybrid nanocomposites and polymer based solid electrolytes for energy storage applications
  4. Conducting polymer nanocomposites for EMI shielding and environmental remediation applications
  5. Biodegradable polymers, carbon nanostructures and synthesis of metal oxides for diversified applications
  6. Polymer blends, polymer-based aerogels and recycling of plastics

Research activities of my group predominantly lie in understanding structure-property correlation in conducting polymer composites and polymer blend nanocomposites so that they can be used for diversified applications such as EMI shielding at microwave frequencies, energy harvesting (piezoelectric and triboelectric) and environmental remediation. Also, our group works on the development of solid polymer electrolyte for sodium ion battery application. The synthesis of inherently conducting polymers such as polyaniline (PANI) and hybrid nanocomposites prepared with PANI nanostructures for energy storage and anticorrosion coating applications are also being carried out in our group. Further, our group is actively involved in the preparation of polymer-based aerogels and conversion of plastic waste to wealth.

Projects

Ongoing Project

  • Development of electroactive polymer-based hybrid nanocomposite nanogenerator for biomedical application- Sanctioned under UGC-DAE Collaborative Research Scheme. (June 2022-ongoing) (1.35 Lakhs)

Completed Project

  • Development of porous poly(vinylidene fluoride)- poly(ethylene oxide) based solid polymer electrolyte for sodium ion battery application, TNSCST-Student Project Scheme, ( 2023-2024 ) ( Rs.7500 )

Research Guidance

Current PhD Students: 2+2 (Direct PhD) +1 (co-guide)
Master Thesis: 8 Completed + 4 on going
Bachelor’s Thesis: 01 completed +01 ongoing

  1. Aleena Sabu : Aleena Sabu after completion of M.Sc [Physics] from Baselius College, Kottayam Joined our group in August 2020 for pursuing Ph.D. and working on synthesis and characterization of semicrystalline polymer-based hybrid nanocomposites which can be used as microwave absorbing material. She has been awarded Junior Research Fellowship from University Grand Commission under the Scheme Savitribai Jyotirao Phule Single Girl Child Fellowship (SJSGC).
  2. Nikhitha Augustin : Nikhitha Augustin, Ph.D. student Joined conducting polymers group in August 2022. Her primary research interest lies in understanding structure-property correlations in polymer blend nanocomposites for energy harvesting applications. She is currently awarded research assistantship by Amrita Vishwa Vidyapeetham. She was a recipient of Aspire scholarship (from Govt. of Kerala) for carrying out M.Sc. project.
  3. Lavaneethan T : Mr. Lavaneethan has registered for direct Ph.D. Currently he is pursuing final semester Int.M.Sc.[Physics] at School of Physical Sciences, Amrita Vishwa Vidyapeetham, Coimbatore. His primary research interest lies in the synthesis and energy storage applications of inherently conducting polymer-based hybrid nanocomposites. Also, he is working in the area of conducting polymer based anticorrosion coatings. He has been shortlisted for the award of Amrita University research fellowship to pursue Ph.D.
  4. Kanya KS : Ms. Kanya KS has registered for direct Ph.D. Currently she is in final semester Int.M.Sc.[Physics]. Her research interest chiefly lies in the area of solid polymer electrolytes/gel polymer electrolytes for battery applications. She has been shortlisted for the award of University Research Fellowship to carry out Ph.D. in the above-mentioned area.
  5. Daphne Mary John (Co-Guide) : Ms. Daphne is currently working on semicrystalline polymer- based nanocomposite for energy harvesting applications. Part of the work- related to her Ph.D. will be carried out with our group. She has been associated with our group since August 2021. Her work is in collaboration with Dr. K.M. Sreekanth group.
  6. Keerthana Balakrishnan : Ms. Keerthana Balakrishnan is currently a final year student of Int.M.Sc.[Physics]. Her major project work deals with structure-property correlation in Biodegradable polymer-based nanocomposites.
  7. Vaishak G : Mr. Vaishak is a final year Int.M.Sc.[Physics] student. His major project work is related to structure-property correlation in semi-crystalline polymer blend nanocomposites.

Past Group Members

Name of the Student Degree Year of Passing Present position
1. Reshma Haridass Int. Msc.[Physics] student 2020 Senior Chemist, Behr Process Paints India Pvt. Ltd., Pune, India [US based company]
2. Niranjan Haridas Menon Int.M.Sc.[Physics] 2021 Graduate student in Materials Engineering Newark, New Jersey, United States.
3. J. Ayyappan Int.M.Sc.[Physics] 2021 Software Engineer, Infosys
4. Athul AK Int.M.Sc.[Physics] 2022 JRF, IIST-Trivandrum
5. Shivankari PR Int.M.Sc.[Physics] 2022 In Pharmaceutical company, Chennai

Reviewer

  1. Composites Part B: Engineering
  2. Materials Letters
  3. Journal of Thermoplastic Composite Material
  4. Polymer Bulletin
  5. ACS Omega
  6. Journal of Alloys and Compounds
  7. Nanoscale
  8. RSC Advances
  9. Materials Science and Engineering B
  10. Journal of Applied Polymer Science
  11. Scientific Reports
  12. Crystal Growth and Design
  13. ACS Applied Nanomaterials
  14. Materials Today Communications
Achievements
  1. Visiting Scholar in the Department of General Practice and Materials Science, College of Dentistry, Ohio State University, USA and worked on the Synthesis and characterization of block co-polymers for dental applications between 15th May 2015 to 01st August 2015 under Scott Schricker.
  2. INSA visiting scientist fellow from 15th June 2015 to 15th August 2015 to work under Dr. Parag V Adhyapak in Centre for Materials for Electronics Technology, Pune (C-MET, Pune).
  3. Stood University Third in Sc.[Physics] Degree examination.
  4. Qualified GATE – all India level examination (Graduate Aptitude Test in Engineering) with 97.69 percentile in
  5. Senior Research Fellowship from Council of Scientific and Industrial Research (CSIR),
  6. Second prize for oral presentation in the international conference APM (Advancements in Polymeric Materials)-2010 held at CIPET- Bhubaneswar, India in Feb’2010.
  7. Dean choice award for teaching in the School of Engineering and Technology, Navrachana University, Vadodara for the year 2014-2015.

Membership in Professional Bodies

  • Life Member-Indian Plastics Institute

Award

  • INSA Visiting Scientist fellowship awarded to work under Dr. Kothandaraman Ramanujam, Department of Chemistry, IIT-Madras from December 2025- January 2026

Invited Presentations

  1. “Current trends in architectural coatings technology” at KDJ Center for Research in Materials & Technology (KCRMT), Pune, India in December
  2. Invited as a resource person to deliver a talk on nanomaterials for the UGC sponsored National seminar held at Sacred Heart College, Chalakudy, Kerala, India in November
  3. Invited Presentation on the topic “Role of Electronic Conducting Materials in ion conducting Energy Storage Devices” in 12th National Conference on Solid State Ionics held in the Department of Physics, Birla Institute of Technology and Science (BITS), Pilani, Rajasthan, India in December 2017.
  4. Invited presentation on the topic “Conducting Polymer Composites for Electromagnetic Interference Shielding Application” in the third international conference on materials science and technology (ICMST-2025) conducted by the Department of Physics, St. Thomas College, Palai, Kerala in March 2025.
Teaching

Amrita

  1. Physics for first semester B.Tech. students
  2. Mechanics for Integrated M.Sc. (Chemistry) students
  3. Electricity and Magnetism for Integrated M.Sc.(Mathematics) students
  4. Physics of Semiconductor Devices for Integrated M.Sc. (Physics) students and B.Tech.[AE]
  5. Basics of Electricity and Magnetism for Int. M.Sc.[Physics] students
  6. Advanced Electrodynamics for Int. M.Sc. [Physics] and M.Sc.[Physics] students
  7. Concepts of Nanophysics and Nanotechnology for B.Tech.[Aerospace Engineering] students
  8. Mechanics and Properties of Matter for Int. M.Sc [Physics] students
  9. Electrodynamics for fifth semester M.Sc [Physics] students
  10. Mastery Over Mind- Exclusively Offered in Amrita Vishwa Vidyapeetham
  11. Physics of Electronic Materials for B.Tech. students
  12. Modern Physics for B.Tech. students
  13. Physics of semiconductors for B.Tech. students

Lab Courses: First Semester B.Tech. Lab, Electricity and magnetism Lab for second year Integrated M.Sc. (Physics) students, Mechanics and Properties of Matter Lab for First year Int.M.Sc [Physics] students, Spectroscopy Lab for Fourth Year Integrated M.Sc (Physics) students

NUV

  1. Atomic and Nuclear Physics
  2. Mechanics
  3. Paint Technology
  4. Introduction to Polymer Science and Engineering
  5. Modern Physics etc

CIPET

  1. Plastic Testing Methods
  2. Carbon nanotubes and related structures
  3. Polymeric Materials
  4. Materials Science
Projects Guided

PG / UG Projects Guided

Student Name & Roll Number  Project Title  Year  Current Position 
Reshma Haridass Integrated MSc Physics 2020 Senior Chemist, Behr Process Paints India Pvt. Ltd., Pune, India [US based company]
Niranjan Haridas Menon Integrated MSc Physics 2021 Graduate student in Materials Engineering Newark, New Jersey, United States.
J. Ayyappan Integrated MSc Physics 2021 Software Engineer, Infosys
Athul AK Integrated MSc Physics 2022 JRF, IIST-Trivandrum
Shivankari PR Integrated MSc Physics 2022 In Pharmaceutical company, Chennai
Keerthana Balakrishnan Integrated MSc Physics 2023 Research Scholar at BITs, Pilani
Conferences Attended
  1. Reshma Haridass, Sachin M, BTS Ramanujam, Poster Presentation on “Electrical Properties of Melt Crystallized Ice Quenched Polyvinylidene Fluoride (PVDF) – Carbon Nanofiber Nanocomposite Thin Film.” India-UK Second International Conference on Advanced Nanomaterials for Energy, Environment and Health Care (ANEH-2019), Bishop Heber College, Trichy, February 04-06, 2019.
  2. J Ayyappan, Niranjan Haridas Menon, BTS Ramanujam, Poster Presentation on “A Study on the Electrical and Thermal Properties of Polyvinylidene Fluoride (PVDF) – Natural Graphite Composite Film”, 4th International Conference on Nanomaterials: Synthesis, Characterization and Applications (ICN 2019), Mahatma Gandhi University, Kottayam, April 12-14, 2019.
  3. Niranjan Haridas Menon, BTS Ramanujam, Oral Presentation on “A Study on the Electrical and Thermal Properties of Polyvinylidene Fluoride (PVDF) -Polyvinyl Acetate (PVAc)– Natural Graphite Composite Film”, 11th International Conference on Advancements in Polymeric Materials (APM 2020), CIPET, Bengaluru, February 13 -15, 2020.
  4. Sachin M, BTS Ramanujam, poster presentation on “Polyvinylidene fluoride (PVDF)-poly(methyl methacrylate) (PMMA)-expanded graphite (ExGr) conducting polymer blends: Analysis of electrical and thermal behavior”, International Conference on Advanced Materials and Nanotechnology (AMN-2020), Jaypee Institute of Information Technology, Noida (India), February 20-22, 2020.
  5. Niranjan Haridas Menon, BTS Ramanujam, Oral Presentation on “Structure Development, Thermal and Electrical Properties of Natural Graphite Incorporated Polyvinylidene Fluoride (PVDF) Based Blend Nanocomposite”, Online International Conference on Advances in Material Science and Chemistry (ICAMSC- 2020), Amrita Vishwa Vidyapeetham, Amritapuri, August 10-12, 2020.
  6. Reshma Haridass, BTS Ramanujam, Oral presentation on “Effect of Polyvinylpyrrolidone (PVP) on the Dispersion Characteristics of Graphite Nanosheets in Polyvinylidene Fluoride (PVDF) Matrix: Analysis of Electrical and Thermal Properties”, International Conference on Advancement in Polymeric Materials (APM 2020), Central Institute for Petrochemical Engineering and technology, APPDRL, Bangalore, February 13-15, 2022.
  7. Keerthana P Balakrishnan, BTS Ramanujam, Poster Presentation on Synthesis, Characterization, and Application of Biodegradable Polymer-Based Conducting Hybrid Nanocomposite, Amrita Vishwa Vidyapeetham, July 04, 2023. (Best Poster Award)
  8. Kanya K S, Nikhitha Augustin, BTS Ramanujam, Oral Presentation on “Polyvinylidene Fluoride (PVDF)-Polyethylene Oxide (PEO) Polymer Blend-Based Solid Electrolyte for Na+ Battery Applications”, Advanced Polymer Design and Development Research Laboratory (APDDRL), CIPET, Bangalore, March 17-19, 2023. (Best Poster Award)
  9. Aleena Sabu, Aravind Menon, Nikhitha Augustin, Lavaneethan, BTS Ramanujam, Poster Presentation on “Polyvinylidene Fluoride-Graphite-Based Conducting Nanocomposites: Effect of Magnetite Nanoparticles on the Electrical Properties”, Advanced Polymer Design and Development Research Laboratory (APDDRL), CIPET, Bangalore, March 17-19, 2023.
  10. Aleena Sabu, BTS Ramanujam, Oral Presentation on “Synthesis and Characterization of Electroactive Polyvinylidene Fluoride (PVDF)-Zinc Oxide (ZnO) Nanocomposites”, International Hybrid Conference on Nanostructured Materials and Polymers, Mahatma Gandhi University, Kottayam, May 12 – 14, 2023.
  11. Lavaneethan T, BTS Ramanujam, Poster Presentation on “Synthesis and Electrical Properties of Polyaniline (PANI) Based Conducting Hybrid Nanocomposites”, International Hybrid Conference on Nano-Structured Materials and Polymers, Mahatma Gandhi University, Kottayam, May 12 – 14, 2023.
  12. Nikhitha Augustin, G. Vaishak, BTS Ramanujam, Oral Presentation on “Analysis of Electrical and Electromagnetic Interference Shielding Properties of Polyvinylidene Fluoride (PVDF)/ Poly( lactic acid)(PLA)/Expanded Graphite (ExGr) Blend Nanocomposites”, Conference on Macromolecules: Synthesis, Morphology, Processing, Structure, Properties and Applications (ICM-2024), Mahatma Gandhi University, Kottayam, January 12 – 14, 2024.
  13. Nikhitha Augustin, BTS Ramanujam, Oral Presentation on “Polyvinylidene Fluoride (PVDF)/ Poly( methyl methacrylate)(PMMA)/Expanded Graphite (ExGr) Conducting Blend Nanocomposites for EMI Shielding Application”, 8th International Conference on Electroactive Polymers (ICEP-2024), KIIT, Bhubaneswar, February 04- 08, 2024.
  14. Aleena Sabu, B.T.S. Ramanujam, Oral Presentation on “Analysis of Electrical Properties and EMI Shielding Effectiveness of Polyvinylidene Fluoride(PVDF)/Carbon Nanofiber (CNF)/Magnetite Hybrid Nanocomposites”, 8th International Conference on Electroactive Polymers (ICEP-2024), KIIT, Bhubaneswar, February 04- 08, 2024.
  15. Meera B Nair, Pooja U, Aleena Sabu, BTS Ramanujam, Poster Presentation on “ZnO Incorporated Polyvinylidene Fluoride (PVDF) – Multiwalled Carbon Nanotube (MWCNT) Hybrid Nanocomposites: Analysis of Structure Development, Electroactive Phase Content and Electrical Conductivity”, National Conference on Material Science and Technology (NCMST 2024), St. Thomas College, Palai, February 21- 23, 2024.
  16. Kanya KS, BTS Ramanujam, Poster Presentation on “Effect of Molecular Weight of Poly(ethylene oxide) (PEO) on the Electrical Properties of Poly(vinylidene fluoride) (PVDF) – PEO-Based Solid Electrolyte for Sodium-Ion Battery Application”, 1st National Meeting on Sodium(-ion) Batteries, IIT Bombay, October 04-06, 2024.
  17. Aleena Sabu, BTS Ramanujam, Poster Presentation on “Flexible Poly(vinylidene fluoride) (PVDF)-Hexagonal Boron Nitride (h-BN)-Multiwalled Carbon Nanotube (MWCNT) Hybrid Nanocomposite Fiber Mat for Piezoelectric Nanogenerator Application”, International Symposium on Innovative Materials for Energy and Environment 2024, CUSAT, Kochi, December 11, 2024.
  18. Athullya, BTS Ramanujam, Poster Presentation on “Development of Flexible P(VDF-HFP)-ExGr-SnO2 Based Hybrid Nanocomposite for Absorption Dominant EMI Shielding”, 3rd International Conference on Materials Science and Technology (ICMST 2025), St. Thomas College, Palai, March 12-14, 2024.
  19. Nandhana A.S, BTS Ramanujam, Poster Presentation on “Flexible Poly(vinylidene fluoride-co-hexafluoropropylene) (P(VDF-HFP)) Based Hybrid Nanocomposite Film for Microwave Absorption Application”, 3rd International Conference on Materials Science and Technology (ICMST 2025), St. Thomas College, Palai, March 12-14, 2024.
  20. Athullya, BTS Ramanujam, “Development of Flexible P(VDF-HFP)-ExGr-SnO2 Based Hybrid Nanocomposite for Absorption Dominant EMI Shielding”, National Conference on Recent Trends in Science and Technology (NCRTST 2025), Amrita Vishwa Vidyapeetham, Coimbatore, May 2, 2025.
  21. Nandhana A.S, BTS Ramanujam, Poster Presentation on “Development of Flexible Polymer( vinylidene fluoride-co-hexafluro propylene) (PVDF-HFP) Based Hybrid Nanocomposite for Microwave Absorption”, National Conference on Recent Trends in Science and Technology (NCRTST 2025), Amrita Vishwa Vidyapeetham, Coimbatore, May 2, 2025. (Best Poster Award)
  22. Nikhitha Augustin, BTS Ramanujam, Poster presentation on Poly(vinylidene fluoride) (PVDF)-Poly(butylene succinate) (PBS) Based Blend Nanocomposites for Absorption-Dominant EMI Shielding, International Conference on Scientific Advances in Natural and Technological Sciences (SAINTS 2026), Christ University, Bangalore, January 7-9, 2026.
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