Crystalline--Crystalline Block Copolymers of Regioregular Poly(3-hexylthiophene) and Polyethylene by Ring-Opening Metathesis Polymerization.

This article focuses on a study crystalline block copolymers of regioregular poly (3-hexylthiophene) and polyethylene by ring-opening metathesis polymerization. The established route to semiconducting block copolymers typically combines a crystalline or amorphous conjugated polymer block with an amorphous, random-coil polymer that provides solubility and facilitates processing. At temperatures less than 70 degrees C, the copolymers are resistant to solvents, such as THF and chloroform; however, they dissolve at more elevated temperatures in, for instance, xylenes and chlorobenzenes.