Normally intractable polymers of the structure:
(wherein X is 0 or NH, provided that at least one X is 0 and R is an organic moiety), such as poly(parabanic acids), are made extrudable by composition with from 5 to 6.0 weight percent of an ester of aromatic (carboxylic acid).
具有以下结构的通常难以溶解的聚合物
(其中 X 为 0 或 NH,但至少有一个 X 为 0,R 为有机分子)的聚合物,如聚对位
苯甲酸,可通过添加 5-6.0 重量百分比的芳香族(
羧酸)酯来挤出。