CYCLIC IMIDES FROM SPIROBIINDANE DIAMINES AND METHODS OF PREPARATION AND USE

摘要

RD-17717 CYCLIC IMIDES FROM SPIROBIINDANE DIAMINES AND METHODS OF PREPARATION AND USE Cyclic imides are prepared by the reaction of a bis(dicarboxyphenyl) sulfide or functional derivative thereof, and optionally a second tetracarboxylic acid or functional derivative thereof such as 2,2-bis¢4-(3,4-di-carboxyphenoxy)phenyl!propane dianhydride, with a diamine having a spirobiindane nucleus. The cyclic imides may be converted to linear polyimides by reaction with a basic alkali metal sulfide.