Regioregular Poly[3‐(4‐alkoxyphenyl)thiophene]s: Evidence for a Two‐Step Aggregation Process

Abstract

Abstract Summary: A chiral, regioregular poly[3‐(4‐alkoxyphenyl)thiophene] has been prepared and studied. Films prepared by fast evaporation of the solvent, consist of random‐coils, while films prepared by slow evaporation are composed of chirally aggregated, coplanar strands. Heat treatment transforms the random‐coils into aggregated films via an intermediate state, which was characterized as chiral, coplanar, unaggregated polymer strands. Overview of the possible aggregation processes. magnified image Overview of the possible aggregation processes.