THE REACTION OF PYROMELLITIC DIANHYDRIDE WITH 4,4'-DIAMINODIPHENYLMETHANE

被引：1

作者：

MAREK, M ^{[1
]}

BEDNAR, B ^{[1
]}

KRALICEK, J ^{[1
]}

机构：

[1] PRAGUE INST CHEM TECHNOL,CS-16628 PRAGUE 6,CZECHOSLOVAKIA

来源：

ANGEWANDTE MAKROMOLEKULARE CHEMIE | 1991年 / 192卷

关键词：

D O I：

10.1002/apmc.1991.051920112

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 homogeneous polyaddition reaction of pyromellitic dianhydride with 4,4'-diaminodiphenylmethane was investigated. The dependence of the number average molecular weights on time has a maximum; low equilibrium values of M(n)BAR are caused by a disturbed equimolarity of functional groups due to the hydrolysis of dianhydride with water present in the solvent. In the course of establishment of the equilibrium M(n)BAR value, the molecular weight distribution changes to the most probable value.

引用

页码：145 / 153

页数：9

共 22 条

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