Polyimides containing carbonyl and ether connecting groups. III

Authors:
Publisher website
Google Scholar
Abstract
Several new polyimides were prepared from the reaction of three aromatic dianhydrides with two new methyl substituted aromatic diamines containing carbonyl and ether connecting groups between the aromatic rings. The diamines were prepared from the reactions of 3‐methyl‐4‐aminophenol and 3,5‐dimethyl‐4‐aminophenol with 1,3‐bis(4‐fluorobenzoyl) benzene in the presence of potassium carbonate. The 300°C cured polyimides containing methyl substituents were shown to be armorphous by wide angle X‐ray diffraction and exhibited glass transition temperatures between 231–281°C. The properties of these new polyimides containing methyl substituents were compared with polymides of the same chemical structure but without methyl substituents.

This publication has 3 references indexed in Scilit: