Exploring RAFT polymerization for the synthesis of bipolar diblock copolymers and their supramolecular self-assembly
Exploring RAFT polymerization for the synthesis of bipolar diblock copolymers and their supramolecular self-assembly
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DOI：
10.1039/c0py00359j
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发表时间：
2011-02
影响因子：
4.6
通讯作者：
Paul Williams;Adam O. Moughton;J. Patterson;S. Khodabakhsh;R. O’Reilly
中科院分区：
文献类型：
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作者：
Paul Williams;Adam O. Moughton;J. Patterson;S. Khodabakhsh;R. O’Reilly
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.
