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Issue 6, 2017
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Methacrylic block copolymers by sulfur free RAFT (SF RAFT) free radical emulsion polymerisation

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Abstract

We demonstrate the use of sulfur free reversible addition–fragmentation chain transfer polymerisation (RAFT) as a versatile tool for the controlled synthesis of methacrylic block and comb-like copolymers. Sulfur free RAFT (SF-RAFT) utilises vinyl terminated macromonomers obtained via catalytic chain transfer polymerisation (CCTP) of methacrylates as a chain transfer agent (CTA), and thus precluding adverse aspects of the RAFT such as toxicity of dithioesters. We have synthesised a range of narrow dispersity block copolymers (Đ < 1.2) and comb-like macromolecules by employing emulsion polymerisation allowing for the preparation of relatively large quantities (∼50 g) of the above mentioned copolymers promptly and straightforwardly. Copolymers were characterised using 1H NMR, size exclusion chromatography (SEC), thermogravimetric analysis (TGA) and matrix-assisted laser desorption/ionization time of flight mass spectroscopy (MALDI-TOF-MS) techniques.

Graphical abstract: Methacrylic block copolymers by sulfur free RAFT (SF RAFT) free radical emulsion polymerisation

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Publication details

The article was received on 22 nóv. 2016, accepted on 22 des. 2016 and first published on 23 des. 2016


Article type: Paper
DOI: 10.1039/C6PY02038K
Citation: Polym. Chem., 2017,8, 1084-1094
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    Methacrylic block copolymers by sulfur free RAFT (SF RAFT) free radical emulsion polymerisation

    G. Nurumbetov, N. Engelis, J. Godfrey, R. Hand, A. Anastasaki, A. Simula, V. Nikolaou and D. M. Haddleton, Polym. Chem., 2017, 8, 1084
    DOI: 10.1039/C6PY02038K

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