申请人:MINNESOTA MINING AND MANUFACTURING COMPANY
公开号:EP0293091A1
公开(公告)日:1988-11-30
A class of polymers comprises one or more 2-amidomethylbenzazole units,
contained within the main polymer backbone, wherein Ar is Ar¹ or Ar², wherein Ar¹ is a tetravalent aromatic nucleus having two pairs of valences, the members of each pair being situated on adjacent carbon atoms; Ar² is a trivalent aromatic nucleus in which at least two of the valences are situated on adjacent carbon atoms; and X is -NR⁴_, -O-, or -S-, where R⁴ is hydrogen or alkyl of 1 to 8 carbon atoms or an aryl group.
一类聚合物由一个或多个 2-脒甲基苯并唑单元组成、
其中 Ar 是 Ar¹ 或 Ar²,其中 Ar¹ 是具有两对价位的四价芳香核,每对价位的成员位于相邻的碳原子上;Ar² 是三价芳香核,其中至少有两个价位位于相邻的碳原子上;X 是 -NR⁴_、-O- 或 -S-,其中 R⁴ 是氢或 1 至 8 个碳原子的烷基或芳基。