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Issue 3, 2011
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Exploring RAFT polymerization for the synthesis of bipolar diblock copolymers and their supramolecular self-assembly

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Abstract

Until recently, the primary controlled radical polymerization (CRP) technique used to synthesize side chain semi-conducting block copolymers from vinyl monomer species has been nitroxide-mediated polymerization (NMP). The potential exploitation of reversible addition fragmentation chain transfer (RAFT) polymerization for the preparation of semi-conducting diblocks has not yet been fully realized. In this work a trithiocarbonate chain transfer agent (CTA) has been shown to polymerize both hole transporting (HT) monomers m-vinyltriphenyl amine and p-vinyltriphenyl amine and also a new fluorinated triphenylamine monomer for the first time, affording both homopolymers and diblock copolymers with good control over molecular weight (Mn) and narrow polydispersities (Mw/Mn). The electronic properties of these blocks and diblocks were explored using UV-vis and cyclic voltammetry analysis. The selective self-assembly of these diblocks into solution nanostructures has been explored and characterized by DLS and TEM analysis.

Graphical abstract: Exploring RAFT polymerization for the synthesis of bipolar diblock copolymers and their supramolecular self-assembly

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Article information


Submitted
01 Nov 2010
Accepted
02 Nov 2010
First published
30 Nov 2010

Polym. Chem., 2011,2, 720-729
Article type
Paper

Exploring RAFT polymerization for the synthesis of bipolar diblock copolymers and their supramolecular self-assembly

P. E. Williams, A. O. Moughton, J. P. Patterson, S. Khodabakhsh and R. K. O'Reilly, Polym. Chem., 2011, 2, 720
DOI: 10.1039/C0PY00359J

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