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1. Regioregular poly(3-hexylthiophene)-poly(ε-caprolactone) block copolymers: Controlled synthesis, microscopic morphology, and charge transport properties

Author

Surin, Mathieu, Coulembier, Olivier, Tran, Khoa, Winter, Julien De, Leclère, Philippe, Gerbaux, Pascal, Lazzaroni, Roberto, and Dubois, Philippe

Subjects
*METATHESIS reactions, *POLYMERIZATION, *POLYTHIOPHENES, *ORGANIC field-effect transistors, *ATOMIC force microscopy, *BLOCK copolymers, *ORGANIC synthesis, *CHARGE transfer
Abstract

Abstract: In this paper, we describe the design and characterization of regioregular poly(3-hexylthiophene)-poly(ε-caprolactone) di- and tri-block copolymers (RRP3HT-b-PCL and PCL-b-RRP3HT-b-PCL). The well-controlled synthesis of (di)hydroxyl-terminated RRP3HT makes possible to design block copolymer structures with a narrow molecular weight distribution. The microscopic morphology is investigated by atomic force microscopy, which reveals self-assembled fibrillar structures with the RRP3HT nanoribbons separated by narrow domains of insulating PCL. The charge transport properties are characterized in thin films field-effect transistors, and comparison between the devices performances is carried out in view of the nanoscale morphology within the transistor channel. [Copyright &y& Elsevier]

Published
2010
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