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Constructing novel double-bond-containing well-defined amphiphilic graft copolymers via successive Ni-catalyzed living coordination polymerization and SET-LRP

Authors

  • Yongjun Li,

    1. Key Laboratory of Organofluorine Chemistry and Laboratory of Polymer Materials, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People's Republic of China
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    • Guolin Lu and Yongjun Li contributed equally to this work

  • Guolin Lu,

    1. Key Laboratory of Organofluorine Chemistry and Laboratory of Polymer Materials, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People's Republic of China
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    • Guolin Lu and Yongjun Li contributed equally to this work

  • Bin Dai,

    Corresponding author
    1. Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi Xinjiang 832003, People's Republic of China
    • Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi Xinjiang 832003, People's Republic of China
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  • Caixia Xu,

    1. Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi Xinjiang 832003, People's Republic of China
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  • Xiaoyu Huang

    Corresponding author
    1. Key Laboratory of Organofluorine Chemistry and Laboratory of Polymer Materials, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People's Republic of China
    • Key Laboratory of Organofluorine Chemistry and Laboratory of Polymer Materials, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People's Republic of China
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Abstract

A series of polyallene-based well-defined amphiphilic graft copolymers, poly(6-methyl-1,2-heptadiene-4-ol)-g-poly(2-(diethylamino)ethyl methacrylate) (PMHDO-g-PDEAEMA), was synthesized through the grafting-from technique. First, double-bond-containing PMHDO backbone bearing pendant hydroxyls was prepared via [(η3-allyl)NiOCOCF3]2-initiated living coordination polymerization of 6-methyl-1,2-heptadiene-4-ol (MHDO). The pendant hydroxyls in the homopolymer were then reacted with 2-chloropropionyl chloride to give PMHDO-Cl macroinitiator. Finally, hydrophilic PDEAEMA side chains were formed by single electron transfer-living radical polymerization (SET-LRP) of 2-(diethylamino)ethyl methacrylate (DEAEMA) in THF/H2O initiated by the macroinitiator using CuCl/Me6TREN as catalytic system to afford PMHDO-g-PDEAEMA graft copolymers. The narrow molecular weight distributions (Mw/Mn ≤ 1.35) and kinetics experiment showed the controllability of SET-LRP graft copolymerization of DEAEMA. The critical micelle concentration (cmc) of PMHDO-g-PDEAEMA amphiphilic graft copolymer in aqueous media was determined by fluorescence probe technique and the relationships between cmc and pH or salinity were also investigated. Micellar morphologies were preliminarily explored using transmission electron microscopy. © 2013 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2013

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