REACTION-KINETICS OF EPOXY/AMINE MODEL SYSTEMS - THE EFFECT OF ELECTROPHILICITY OF AMINE MOLECULE

被引：56

作者：

MIJOVIC, J

WIJAYA, J

机构：

[1] Department of Chemical Engineering, Polytechnic University, Six MetroTech Center, New York 11201, Brooklyn

[2] Carborundum Abrasives R&D (division of Norton Chemicals), Niagara Falls

来源：

MACROMOLECULES | 1994年 / 27卷 / 26期

关键词：

D O I：

10.1021/ma00104a013

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

An investigation was carried out on the effect of electrophilicity of amine molecule on the epoxy/amine reaction kinetics. Model systems, containing amines with different electron-donating and/or -withdrawing characteristics, were prepared, reacted, and investigated by high-performance liquid chromatography (HPLC). Reaction rate constants and activation energies were determined for all systems based upon a kinetic model of epoxy/amine reactions. It was established that an electron-donating group on the amine molecule enhanced the reaction rate and lowered the activation energy. It was also found that the reactivity ratio of primary amine/epoxy and secondary amine/epoxy reactions was dependent on the amine structure, but independent on temperature.

引用

页码：7589 / 7600

页数：12

共 32 条

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