Construction of well-defined difluoromethylthio-containing amphiphilic homopolymers by RAFT polymerization

文献情報

出版日 2020-11-09

DOI 10.1039/D0PY01234C

インパクトファクター 5.582

著者

Haoyu Liu, Sen Zhang, Xiaoyu Huang, Aishun Ding, Guolin Lu

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要旨

A new acrylamide monomer consisting of both difluoromethylthio and isopropylamide moieties, N-3-(difluoromethylthio)propyl-N-(3-(isopropylamino)-3-oxopropyl)acrylamide (DFTP-NIPAM-AM), was firstly synthesized from 3-difluorothiomethyl-1-propylamine via aza-Michael addition reaction followed by amidation with acryloyl chloride. A well-defined fluoropolymer with a relatively narrow molecular weight distribution, poly(DFTP-NIPAM-AM), was obtained via reversible addition–fragmentation chain transfer (RAFT) polymerization using 3-(benzylthiocarbonothioylthio)propanoic acid as chain transfer agent. The thermal property of the poly(DFTP-NIPAM-AM) homopolymer was examined by differential scanning calorimetry (DSC), which indicated that difluoromethylthio moiety has an obvious impact on the glass transition temperature (Tg). The critical micelle concentration (cmc) of poly(DFTP-NIPAM-AM) homopolymer in aqueous solution was determined by fluorescent probe technique. It was found that poly(DFTP-NIPAM-AM) homopolymer could self-assemble into spherical micelles in aqueous solution, which was visualized by transmission electron microscopy (TEM).

掲載誌

Polymer Chemistry

CiteScore: 8.6

自己引用率: 7.3%

年間論文数: 457

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Construction of well-defined difluoromethylthio-containing amphiphilic homopolymers by RAFT polymerization

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