KINETICS OF CURING REACTION OF URETHANE FUNCTION ON BASE-CATALYZED EPOXY REACTION

Citation
Jl. Han et al., KINETICS OF CURING REACTION OF URETHANE FUNCTION ON BASE-CATALYZED EPOXY REACTION, Journal of applied polymer science, 68(1), 1998, pp. 121-127
Citations number
15
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Polymer Sciences
ISSN journal
0021-8995
Volume
68
Issue
1
Year of publication
1998
Pages
121 - 127
Database
ISI
SICI code
0021-8995(1998)68:1<121:KOCROU>2.0.ZU;2-7
Abstract
The kinetic study on the effect of aromatic-connected carbamate (Ar-ca rbamate) on the curing reaction of phenyl glycidyl ether (PGE) catalyz ed by tertiary amine was carried out through thermal analysis of the r eaction by differential scanning calorimetry (DSC). By isothermal DSC analysis, the consumption rate of the epoxide group of PGE was found t o be a first-order reaction in the presence of aromatic-connected carb amate in the reaction. It was found that the reaction system has a low activation energy (E-a = 4.63 kcal/mol) as compared to the system wit hout Ar-carbamate (E-a = 6.89 kcal/mol). A reaction mechanism was prop osed for this reaction system. (C) 1998 John Wiley & Sons, Inc.