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Self-orienting head-to-tail poly(3-alkylthiophenes): new insights on structure-property relationships in conducting polymers

It is found that head to tail poly(3-alkylthiophene)s (PAT) undergo solid-state macromolecular self-assembly and give self-oriented structures, as determined by X-ray diffraction studies. In addition, it is found that PATs with longer alkyl side chains (e.g. C 12 H 25 ) produce the structures with the most desirable electronic, electrochemical and optical properties and induce the formation of planar main-chain structures