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.
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页码：111 / 120
页数：10
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