Patent ID: 6025439
Filing Date: 2000-02-15
Classification: C08G,C08L

Abstract:
A method for preparing a molecular composite consisting essentially of a rod-like aromatic heterocyclic polymer and a thermoplastic polymer in a weight ratio of about 1:99 to 50:50, wherein said rod-like polymer is a polybenzobisazole polymer having sulfonic acid groups pendant to the polymer backbone and said thermoplastic polymer is selected from the group consisting of polyvinylpyridines, poly(arylene ether ketone)s with a pyridyl functionality, aromatic poly(pyridine ether)s and poly(pyridine ether sulfone) copolymers, and polyimides with a pyridyl functionality, which comprises the steps of:(a) dissolving the rod-like polymer in an alcoholic or aprotic solvent;(b) dissolving the thermoplastic polymer in an alcoholic or aprotic solvent;(c) combining the solutions resulting from steps (a) and (b); and(d) recovering the resulting molecular composite from the combined solution of step (c).