EPR study of the cure and phase separation in epoxy-amine system with modifying additive

被引：0

作者：

Krisyuk, BE ^{[1
]}

Dzhavadyan, EA ^{[1
]}

Bogdanova, LM ^{[1
]}

Rozenberg, BA ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Problems Chem Phys, Chernogolovka 142432, Moscow Oblast, Russia

来源：

VYSOKOMOLEKULYARNYE SOEDINENIYA SERIYA A & SERIYA B | 1998年 / 40卷 / 10期

关键词：

D O I：

暂无

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The processes of curing and phase formation in an epoxy-amine system (bisphenol A diglycidyl ester cured with cycloaliphatic diamine), containing 0-17 vol % additives of a poly(oxypropylene glycol diacrylate) oligomer, were studied by methods of calorimetry, viscometry, and light scattering and by the spin-label and spin-probe EPR techniques. It was found that the EPR spectra reveal the onset of phase separation in the system before it is manifested in the light scattering spectra. The EPR spectroscopy also revealed a process of secondary phase formation following the gel formation and demonstrated the presence of kinetic inhomogeneity in the pure epoxy-amine system.

引用

页码：1598 / 1606

页数：9

共 12 条

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