期刊
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING
卷 50, 期 3, 页码 282-287出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/03602559.2010.531866
关键词
Epoxy-acrylate-maleate; Interpenetrating network; Kinetic parameters; Thermal stability; Unsaturated polyester
Epoxy-acrylate-maleate of bisphenol-C (ECAM), unsaturated polyester resin of phthalic anhydride, maleic anhydride and propylene glycol (PMP) were synthesized. ECAM, PMP and their varying compositions (25-75 wt%) were cured using MEKP and cobalt naphthenate and characterized by IR, DSC and TGA techniques. Interpenetrating networks possess intermediate thermal stability of ECAM (300 degrees C) and PMP (227 degrees C) and followed single step degradation with fractional order kinetics (0.6-2.4) leaving 10-25% residue above 400 degrees C. Low magnitudes of energy of activation and frequency factor of interpenetrating networks indicated improvement in flexibility due to toughening of PMP by ECAM of varying compositions.
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