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Issue 20, 2017
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In situ synthesis of the Ag/poly(4-vinylpyridine)-block-polystyrene composite nanoparticles by dispersion RAFT polymerization

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Abstract

Metal/block-copolymer composite nanoparticles have been attracting considerable interest and are usually prepared by incorporating metal nanoparticles or metal ions into pre-prepared block copolymer nanoparticles. Herein, a new method of one-pot synthesis of the colloid-like metal/block-copolymer nanocomposites of poly(4-vinylpyridine)-block-polystyrene (P4VP-b-PS) and Ag nanoparticles by dispersion RAFT polymerization is proposed. This method employs the chelate polymer of poly(4-vinylpyridine) trithiocarbonate (P4VP-TTC) as both a macro-RAFT agent for dispersion RAFT polymerization and a stabilizer for Ag nanoparticles, and it affords a convenient synthesis of the Ag/P4VP-b-PS composite nanoparticles. Ag nanoparticles are uniformly embedded in the P4VP-b-PS nanoparticles to result into Ag/P4VP-b-PS composited nanoparticles. It is found that the size of the Ag/P4VP-b-PS composite nanoparticles increases either with the degree of polymerization of the polystyrene block or with the Ag fraction in the nanocomposites. This dispersion RAFT polymerization in the presence of a macro-RAFT agent stabilized metal nanoparticles is believed to be an efficient method to synthesize concentrated metal/block-copolymer nanocomposites.

Graphical abstract: In situ synthesis of the Ag/poly(4-vinylpyridine)-block-polystyrene composite nanoparticles by dispersion RAFT polymerization

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Publication details

The article was received on 20 Mar 2017, accepted on 20 Apr 2017 and first published on 21 Apr 2017


Article type: Paper
DOI: 10.1039/C7PY00473G
Citation: Polym. Chem., 2017,8, 3203-3210
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    In situ synthesis of the Ag/poly(4-vinylpyridine)-block-polystyrene composite nanoparticles by dispersion RAFT polymerization

    H. Liu, M. Ding, Z. Ding, C. Gao and W. Zhang, Polym. Chem., 2017, 8, 3203
    DOI: 10.1039/C7PY00473G

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