ACID DECOMPOSABLE POLYAZOMETHINE

摘要

PROBLEM TO BE SOLVED: To provide a new polyazomethine having high heat resistance and capable of being hydrolyzed into an oligomer in the dilute acidic solution at room temperature. SOLUTION: This polyazomethine is produced by the method in which an azomethine monomer is reacted with an aromatic dicarboxylic acid, an aromatic carbonyl chloride or diphenyldicarboxylic acid in the presence of an acid such as titanium tetrachloride and para-toluenesulfonic acid.