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公开(公告)号:US6156874A
公开(公告)日:2000-12-05
申请号:US238533
申请日:1999-01-27
申请人: Xiaodong Hu , Satish Kumar , Malcolm B. Polk
发明人: Xiaodong Hu , Satish Kumar , Malcolm B. Polk
摘要: Rod-like aromatic heterocyclic polymers having repeating units of the formula --(--Q--Ar--).sub.m --(--Q--Ph--).sub.n)-- where Q is ##STR1## X is --O--, --S--, or --NH--; m is 0.05 to 1.0; n is 1.0-m; Ph is 1,4-phenylene; Ar is ##STR2## R.sub.1 and R.sub.2 are the same and are either H or CH.sub.3 ; and R.sub.3 and R.sub.4 are CH.sub.3.
摘要翻译: 具有式 - ( - Q-Ar-)m - ( - Q-Ph-)n) - 其中Q为X的重复单元的棒状芳族杂环聚合物为-O - , - S-或-NH-; m为0.05〜1.0; n为1.0μm; Ph为1,4-亚苯基; Ar为R 1和R 2相同,为H或CH 3; R3和R4是CH3。