PARABANIC ACID POLYMERS CONTAINING IMIDE GROUPS

摘要

Iminoimidazolidinedione polymers containing imide groups (hereinafter PIPA-IM) are prepared from mixtures of dianhydrides, hydrogen cyanide and diisocyanates in an appropriate solvent and with an appropriate catalyst The cyanide ion is an effective catalyst for all of the reactions involved Hydrolysis of these polymers produces novel parabanic acid polymers containing imide groups (hereinafter PPA-IM)