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Kinetics of curing reaction of urethane function on base‐catalyzed epoxy reaction
Author(s) -
Han J. L.,
Chern Y. C.,
Hsieh K. H.,
Chiu W. Y.,
Ma C. C. M.
Publication year - 1998
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19980404)68:1<121::aid-app13>3.0.co;2-3
Subject(s) - differential scanning calorimetry , carbamate , curing (chemistry) , activation energy , epoxide , catalysis , order of reaction , polymer chemistry , chemistry , reaction mechanism , kinetics , reaction rate , ether , epoxy , chemical kinetics , materials science , organic chemistry , reaction rate constant , physics , quantum mechanics , thermodynamics
The kinetic study on the effect of aromatic‐connected carbamate (Ar‐carbamate) on the curing reaction of phenyl glycidyl ether (PGE) catalyzed by tertiary amine was carried out through thermal analysis of the reaction by differential scanning calorimetry (DSC). By isothermal DSC analysis, the consumption rate of the epoxide group of PGE was found to be a first‐order reaction in the presence of aromatic‐connected carbamate 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 without Ar‐carbamate ( E a = 6.89 kcal/mol). A reaction mechanism was proposed for this reaction system. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 68:121–127, 1998