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Making the best of it: nitroxide-mediated polymerization of methacrylates via the copolymerization approach with functional styrenics

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Abstract

The SG1-mediated solution polymerization of methyl methacrylate (MMA) and oligo(ethylene glycol) methacrylate (OEGMA, Mn = 300 g mol−1) in the presence of a small amount of functional/reactive styrenic comonomer is investigated. Moieties such as pentafluorophenyl ester, triphenylphosphine, azide, pentafluorophenyl, halide, and pyridine are considered. A comonomer fraction as low as 5 mol% typically results in a controlled/living behavior, at least up to 50% conversion. Chain extensions with styrene for both systems were successfully performed. Variation of physical properties such as refractive index (for MMA) and phase transition temperature (for OEGMA) were evaluated by comparing to 100% pure homopolymers. The introduction of an activated ester styrene derivative in the polymerization of OEGMA allows for the synthesis of reactive and hydrophilic polymer brushes with defined thickness. Finally, using the example of pentafluorostyrene as controlling comonomer, it is demonstrated that functional PMMA-b-PS are able to maintain a phase separation ability, as evidenced by the formation of nanostructured thin films.

Graphical abstract: Making the best of it: nitroxide-mediated polymerization of methacrylates via the copolymerization approach with functional styrenics

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Publication details

The article was received on 29 Sep 2019, accepted on 18 Nov 2019 and first published on 19 Nov 2019


Article type: Paper
DOI: 10.1039/C9PY01458F
Polym. Chem., 2020, Advance Article
  • Open access: Creative Commons BY-NC license
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    Making the best of it: nitroxide-mediated polymerization of methacrylates via the copolymerization approach with functional styrenics

    A. C. Schmidt, H. Turgut, D. Le, A. Beloqui and G. Delaittre, Polym. Chem., 2020, Advance Article , DOI: 10.1039/C9PY01458F

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