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Facile Grafting Modification of Poly(Vinylidene Fluoride‐ co ‐Trifluoroethylene) Directly from Inner CHCH Bonds
Author(s) -
Wang Miao,
Liao Jiani,
Peng Biyun,
Zhang Ying,
Tan Shaobo,
Zhang Zhicheng
Publication year - 2021
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.202100017
Subject(s) - copolymer , polymer chemistry , grafting , monomer , materials science , fluoride , methyl methacrylate , crystallization , polymerization , methacrylate , polymer , chemical engineering , chemistry , organic chemistry , composite material , inorganic chemistry , engineering
To endow new functions to poly(vinylidene fluoride) (PVDF) based fluoropolymers and expand their application fields, chemical modification is a useful tool to achieve this goal. In this work, the grafting of varied vinyl monomers onto PVDF backbone is achieved via the radical polymerization process using poly(vinylidene fluoride‐ co ‐trifluoroethylene) bearing CHCH double bonds (P(VDF‐TrFE‐DB)) as initiator, which is obtained by a controlled dehydrofluorination reaction of P(VDF‐TrFE). The graft copolymerization is achieved under mild conditions, and the composition of the graft copolymers can be regulated by changing the reaction conditions. Moreover, the introduction of low‐polar poly(methyl methacrylate) (PMMA) side chains can effectively adjust the crystallization and dielectric properties of P(VDF‐TrFE). This work may offer a facile method for preparing PVDF‐based graft copolymers.