Synthesis and characterization of cyano-substituted polyimides .1.

被引：0

作者：

Lee, S ^{[1
]}

机构：

[1] SKC LTD,R&D CTR,CHONAN 333830,SOUTH KOREA

来源：

KOREA POLYMER JOURNAL | 1995年 / 3卷 / 02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：

2,2'-Dicyano-4,4'-diaminobiphenyl (DCB) has been synthesized from 2,2'-diiodo-4,4'-diaminobiphenyl and copper (I) cyanide. The initial polymerizations of this monomer with commercial dianhydrides in various solvents afforded insoluble materials. In order to improve the solubility, the random copolymerizations with a comonomer, 2,2'-bis(trifluoromethyl)-4,4'-diaminobiphenyl (PFMB), were carried out. Several copolymers, soluble in phenolic solvents, were obtained. Intrinsic viscosities ranged from 3.58 to 4.62 dL/g. The fiber with the highest tensile strength (17.9 g/d) was prepared from a copolymer obtained from a 1:9 molar ratio of DCB:PFMB.

引用

页码：111 / 120

页数：10

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