申请人:IDEMITSU PETROCHEMICAL
COMPANY LIMITED
公开号:EP0296250A1
公开(公告)日:1988-12-28
It has a high molecular weight and an excellent moldability, and is suited as a material for moldings such as various films, fibers, etc. It comprises 90 to 99.99 wt% of structural units (I) represented by the formula (1)
% of structural units (II) represented by formula (2),
Ar represents an aromatic residue, X° represents -N-, -S- or -0-, R represents a hydrogen atom, an alkyl group or an aryl group and, when X° represents-N-,t represents 1 and, when X° represents -S- or-0-, t represents 0) and has a weight-average molecular weight of 2,000 to 500,000.
它具有高分子量和优异的成型性,适合用作各种薄膜、纤维等成型材料。它由 90 至 99.99 重量百分比的式 (1) 所代表的结构单元 (I) 组成
%的结构单元(II),由式(2)表示、
Ar代表芳香族残基,X°代表-N-、-S-或-0-,R代表氢原子、烷基或芳基,当X°代表-N-时,t代表1,当X°代表-S-或-0-时,t代表0),其重量-平均分子量为 2,000 至 500,000。