INVERSE GAS-CHROMATOGRAPHY USED TO FOLLOW KINETICS OF EPOXY AMINE REACTIONS IN THE MOLTEN STATE

被引:14
作者
GRENIERLOUSTALOT, MF
MOULINE, G
GRENIER, P
机构
[1] Inst Universitaire de Recherche, Scientifique, Pau, Fr, Inst Universitaire de Recherche Scientifique, Pau, Fr
关键词
AMINES - CALORIMETRY - CHEMICAL REACTIONS - Reaction Kinetics - EPOXY RESINS;
D O I
10.1016/0032-3861(87)90387-9
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Polycondensation kinetics of epoxy-amine model systems were investigated with inverse gas chromatography. The results obtained were applied to the study of cross-linking kinetics of two epoxy prepolymers, tetraglycidyl diamino diphenyl methane and diglycidyl ether of bisphenol A, with diamino diphenyl sulfone. Data furnished by inverse gas chromatography showed zones of gelation and of vitrification. Based on kinetics established by isothermal microcalorimetry, it was possible to determine reaction advancement in these transition zones. The results show that advancement of both reaction systems to the transition points T//1 and T//2 is very sensitive to curing temperature and to the stoichiometry of the mixture. Finally, the vitreous transition temperatures of the cross-linked systems were determined and compared to those determined with differential scanning calorimetry.
引用
收藏
页码:2275 / 2281
页数:7
相关论文
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