Crystal Forms and Microphase Structures of Poly(vinylidene fluoride-co-hexafluoropropylene) Physically and Chemically Incorporated with Ionic Liquids

被引:14
作者
Guan, Jipeng [1 ,2 ]
Shen, Jieqing [1 ]
Chen, Xingru [1 ]
Wang, Hengti [1 ]
Chen, Qin [1 ]
Li, Jingye [2 ]
Li, Yongjin [1 ]
机构
[1] Hangzhou Normal Univ, Coll Mat Chem & Chem Engn, 16 Xuelin Rd, Hangzhou 310036, Zhejiang, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Appl Phys, 2019 Jialuo Rd, Shanghai 201800, Peoples R China
基金
中国国家自然科学基金; 国家重点研发计划; 浙江省自然科学基金;
关键词
BLOCK-COPOLYMERS; PHASE-BEHAVIOR; DIELECTRIC COMPOSITES; CONDUCTIVITY; FLUORIDE); MEMBRANES; GRAPHENE; NANOSTRUCTURATION; POLYMERIZATION; NANOCOMPOSITES;
D O I
10.1021/acs.macromol.8b02087
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The effects of incorporating two imidazolium-type ionic liquids (ILs), 1-vinyl-3-butylimidazolium bis-(trifluoromethylsulfonyl)imide (IL-TFSI) and 1-vinyl-3-butylimidazolium chloride (IL-Cl), on the crystal forms and phase microstructures of poly(vinylidene fluoride-co-hexafluoropropylene), P(VDF-co-HFP), were investigated. No change in the crystal form was observed with the incorporation of IL-TFSI because of the selective interaction between the IL and HFP moieties of the P(VDF-co-HFP) molecular chains. In contrast, the incorporation of IL-Cl induces an alpha-to-beta crystal form transition because of the interactions between IL-Cl and the VDF moieties. Furthermore, the incorporation of IL-TFSI led to distinct phase separation of P(VDF-co-HFP), whereas a homogeneous phase structure was maintained with the incorporation of IL-Cl. Element mapping images reveal that the specific interactions of IL-TFSI with the HFP moieties induce enrichment of the HFP moieties, which results in well-defined HFP/IL-TFSI nanodomains in the P(VDF-co-HFP) matrix. In contrast, a homogeneous morphology was observed in the P(VDF-co-HFP)/IL-Cl- blends. The smaller anion of IL-Cl can interact with VDF moieties and form a thermodynamically miscible state with the P(VDF-co-HFP) matrix. In addition, ILs chemically grafted on P(VDF-co-HFP) were in situ synthesized using electron-beam irradiation of the blends of P(VDF-co-HFP) with ILs at room temperature because both ILs contain double bonds. The phase structures of the IL-grafted copolymers were further studied. After chemical grafting and melting, the original microphase-separated structure of the P(VDF-co-HFP)/IL-TFSI blends was maintained, whereas discrete nanodomains with diameters of 10-20 nm were formed for the original homogeneous P(VDF-co-HFP)/IL-Cl blends. The interesting crystal forms and phase structures of P(VDF-co-HFP) physically or chemically incorporated with different ILs demonstrate the effectiveness of this strategy for the design of polymer microstructures using simple blending and radiation-induced grafting processes.
引用
收藏
页码:385 / 394
页数:10
相关论文
共 44 条
  • [1] Templated self-assembly of block copolymers: Top-down helps bottom-up
    Cheng, Joy Y.
    Ross, Caroline A.
    Smith, Henry I.
    Thomas, Edwin L.
    [J]. ADVANCED MATERIALS, 2006, 18 (19) : 2505 - 2521
  • [2] 1D/2D Carbon Nanomaterial-Polymer Dielectric Composites with High Permittivity for Power Energy Storage Applications
    Dang, Zhi-Min
    Zheng, Ming-Sheng
    Zha, Jun-Wei
    [J]. SMALL, 2016, 12 (13) : 1688 - 1701
  • [3] Lithium ion conducting PVdF-HFP composite gel electrolytes based on N-methoxyethyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)-imide ionic liquid
    Ferrari, S.
    Quartarone, E.
    Mustarelli, P.
    Magistris, A.
    Fagnoni, M.
    Protti, S.
    Gerbaldi, C.
    Spinella, A.
    [J]. JOURNAL OF POWER SOURCES, 2010, 195 (02) : 559 - 566
  • [4] Durable Anti-Superbug Polymers: Covalent Bonding of Ionic Liquid onto the Polymer Chains
    Guan, Jipeng
    Wang, Yanyuan
    Wu, Shilu
    Li, Yongjin
    Li, Jingye
    [J]. BIOMACROMOLECULES, 2017, 18 (12) : 4364 - 4372
  • [5] Semicrystalline Polymer Binary-Phase Structure Templated Quasi-Block Graft Copolymers
    Guan, Jipeng
    Wang, Yanyuan
    Xing, Chenyang
    Ye, Lijun
    Li, Yongjin
    Li, Jingye
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2017, 121 (31) : 7508 - 7518
  • [6] Poly (vinylidene fluoride) dielectric composites with both ionic nanoclusters and well dispersed graphene oxide
    Guan, Jipeng
    Xing, Chenyang
    Wang, Yanyuan
    Li, Yongjin
    Li, Jingye
    [J]. COMPOSITES SCIENCE AND TECHNOLOGY, 2017, 138 : 98 - 105
  • [7] Synthesis of thermally sensitive water-soluble polymethacrylates by living anionic polymerizations of oligo(ethylene glycol) methyl ether methacrylates
    Han, S
    Hagiwara, M
    Ishizone, T
    [J]. MACROMOLECULES, 2003, 36 (22) : 8312 - 8319
  • [8] New polymer synthesis by nitroxide mediated living radical polymerizations
    Hawker, CJ
    Bosman, AW
    Harth, E
    [J]. CHEMICAL REVIEWS, 2001, 101 (12) : 3661 - 3688
  • [9] High Dielectric Permittivity and Low Percolation Threshold in Nanocomposites Based on Poly(vinylidene fluoride) and Exfoliated Graphite Nanoplates
    He, Fuan
    Lau, Sienting
    Chan, Helen Laiwa
    Fan, Jintu
    [J]. ADVANCED MATERIALS, 2009, 21 (06) : 710 - +
  • [10] Structure-Conductivity Relationships in Ordered and Disordered Salt-Doped Diblock Copolymer/Homopolymer Blends
    Irwin, Matthew T.
    Hickey, Robert J.
    Xie, Shuyi
    So, Soonyong
    Bates, Frank S.
    Lodge, Timothy P.
    [J]. MACROMOLECULES, 2016, 49 (18) : 6928 - 6939