EPOXY-AROMATIC DIAMINE KINETICS .2. INFLUENCE ON EPOXY-AMINE NETWORK FORMATION

被引:53
作者
GIRARDREYDET, E
RICCARDI, CC
SAUTEREAU, H
PASCAULT, JP
机构
[1] INST NATL SCI APPL,MAT MACROMOLEC LAB,CNRS,URA 507,F-69621 VILLEURBANNE,FRANCE
[2] UNIV MAR DEL PLATA,INST MAT SCI & TECHNOL,RA-7600 MAR DEL PLATA,ARGENTINA
[3] CONSEJO NACL INVEST CIENT & TECN,NATL RES COUNCIL,RA-7600 MAR DEL PLATA,ARGENTINA
关键词
D O I
10.1021/ma00127a004
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
From the complete description of neat systems and the determination of phase diagrams, the influence of a nonfunctionalized initially soluble thermoplastic on epoxy-amine kinetics was discussed, considering the dilution effect induced by the additive. The initially soluble thermoplastic, a poly(ether imide), PEI, can act as a catalyst when the initial reactivity of the epoxy-amine system is very low. The conversion, x(cp), at which phase separation occurs depends on the initial miscibility of PEI in the mixture of monomers. Both structural transformations, gelation and vitrification, were found to be affected by the phase separation process because of the induced fractionation phenomena. The evolution of phase diagrams which cure was also considered and temperature-conversion-transformation (TxT) diagrams were presented.
引用
收藏
页码:7608 / 7611
页数:4
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