Back close

Studies on Calcium-containing Poly(urethane ether)s

Publication Type : Journal Article

Thematic Areas : Nanosciences and Molecular Medicine

Publisher : Journal of Polymer Science Part A: Polymer Chemistry

Source : Journal of Polymer Science Part A: Polymer Chemistry, Volume 41, Number 18, p.2865-2878 (2003)

Url :

Keywords : calcium-containing poly(urethane ether)s, coating characteristics, Coatings, glass-transition temperature, spectral and thermal studies, Thermal properties Abstract:

Campus : Kochi

School : Center for Nanosciences

Center : Amrita Center for Nanosciences and Molecular Medicine Move, Nanosciences

Department : Nanosciences and Molecular Medicine

Year : 2003

Abstract : The calcium salt of mono(hydroxyethoxyethyl)phthalate [Ca(HEEP)2] was synthesized by the reaction of diethylene glycol, phthalic anhydride, and calcium acetate. Calcium-containing poly(urethane ether)s (PUEs) were synthesized by the reaction of hexamethylene diisocyanate (HMDI) or tolylene 2,4-diisocyanate (TDI) with a mixture of Ca(HEEP)2 and poly(ethylene glycol) (PEG300 or PEG400) with di-n-butyltin dilaurate as a catalyst. A series of calcium-containing PUEs of different compositions were synthesized with Ca(HEEP)2/PEG300 (or PEG400)/diisocyanate (HMDI or TDI) molar ratios of 2:2:4, 3:1:4, and 1:3:4 so that the coating properties of the PUEs could be studied. Blank PUEs without calcium-containing ionic diols were also prepared by the reaction of PEG300 or PEG400 with HMDI or TDI. The PUEs were well characterized by Fourier transform infrared, 1H and 13C NMR, solid-state cross-polarity/magic-angle-spinning 13C NMR, viscosity, solubility, and X-ray diffraction studies. The thermal properties of the polymers were also studied with thermogravimetric analysis and differential scanning calorimetry. The PUEs were applied as top coats on acrylic-coated leather, and their physicomechanical properties were also studied. The coating properties of PUEs, such as the tensile strength, elongation at break, tear strength, water vapor permeability, flexing endurance, cold crack resistance, abrasion resistance, color fastness, and adhesive strength, were better than the standard values. © 2003 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 41: 2865–2878, 2003

Cite this Research Publication : Dr. Jayakumar Rangasamy, Lee, Y. - S., and Nanjundan, S., “Studies on Calcium-containing Poly(urethane ether)s”, Journal of Polymer Science Part A: Polymer Chemistry, vol. 41, pp. 2865-2878, 2003.

Admissions Apply Now