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Polymer Bulletin

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01.11.2017 | Original Paper

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

verfasst von: Nese Cakir Yigit, Gurkan Hizal, Umit Tunca

Erschienen in: Polymer Bulletin | Ausgabe 8/2018

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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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Titel: A powerful tool for preparing peripherally post-functionalized multiarm star block copolymer
verfasst von: Nese Cakir Yigit
Gurkan Hizal
Umit Tunca
Publikationsdatum: 01.11.2017
Verlag: Springer Berlin Heidelberg
Erschienen in: Polymer Bulletin / Ausgabe 8/2018
Print ISSN: 0170-0839
Elektronische ISSN: 1436-2449
DOI: https://doi.org/10.1007/s00289-017-2218-5

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