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A powerful tool for preparing peripherally post-functionalized multiarm star block copolymer

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Abstract

A facile synthetic approach for the design of peripherally post-functionalized multiarm star block copolymer has been established by nucleophilic aromatic substitution reaction of pentafluorophenyl periphery functional multiarm star polymer with alcohol moieties of poly(ethylene glycol) (PEG-OH) under mild reaction conditions. For this purpose, α-fluoro-functionalized PS (α-fluoro-PS) was prepared by atom transfer radical polymerization (ATRP) of styrene (St) and was allowed to react with divinyl benzene (DVB) as a linking agent yielding (fluoro-PS)n–polyDVB multiarm star polymer. Then, (PEG)m–(PS)n–polyDVB multiarm star block copolymer was synthesized via nucleophilic addition of PEG-OH precursor with (fluoro-PS)n–polyDVB multiarm star polymer in the presence of sodium hydride in tetrahydrofuran at reflux for 3 h. Multiarm star polymers were characterized using triple detection gel permeation chromatography (TD-GPC), FT-IR, 1H NMR, 19F NMR and 13C NMR.

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Authors and Affiliations

  1. Department of Chemistry, Istanbul Technical University, 34469, Istanbul, Turkey

    Nese Cakir Yigit, Gurkan Hizal & Umit Tunca

  2. Department of Polymer Engineering, Yalova University, 77100, Yalova, Turkey

    Nese Cakir Yigit

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  1. Nese Cakir Yigit
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  2. Gurkan Hizal
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  3. Umit Tunca
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Correspondence to Nese Cakir Yigit.

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Cakir Yigit, N., Hizal, G. & Tunca, U. A powerful tool for preparing peripherally post-functionalized multiarm star block copolymer. Polym. Bull. 75, 3523–3538 (2018). https://doi.org/10.1007/s00289-017-2218-5

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  • DOI: https://doi.org/10.1007/s00289-017-2218-5

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