Synthesis and characterization of a novel carboxyl group containing (co)polyimide with sulfur in the polymer backbone.

Shared by Yaw Boateng • chemistry • 2012

This article is from Beilstein Journal of Organic Chemistry , volume 8 . Abstract Soluble functional (co)polyimides are of great interest in the area of separation processes or optical applications, due to their excellent mechanical-, thermal- and optical properties, their superior processability and the ability to adapt their properties to a wide range of special applications. Therefore, two series of novel (co)polyimides containing fluorinated sulfur- and carboxylic acid groups consisting of 4,4′-(hexafluoroisopropylidene)di(phthalic anhydride) (6FDA), 3,5-diaminobenzoic acid (DABA), 4,4′-di