Poly(vinylidene fluoride) Nanocomposites with Simultaneous Organic Nanodomains and Inorganic Nanoparticles
Xing, CY; Wang, YY; Huang, XY; Li, YJ; Li, JY; Li, YJ (reprint author), Hangzhou Normal Univ, Coll Mat Chem & Chem Engn, 16 Xuelin Rd, Hangzhou 310036, Zhejiang, Peoples R China.; Li, JY (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, CAS Ctr Excellence TMSR Energy Syst, 2019 Jialuo Rd, Shanghai 201800, Peoples R China.
2016
发表期刊MACROMOLECULES
ISSN0024-9297
卷号49期号:3页码:1026—1035
文章类型期刊文献
摘要Nanostructured polymeric dielectric composites, based on poly(vinylidene fluoride) (PVDF), conductive carbon black (CB), and an unsaturated ionic liquid (IL), 1-vinyl-3-ethylimidazolium tetrafluoroborate a (VEIM][BF4]), were fabricated by melt blending and electron beam irradiation (EBI) methods. Our strategy forms simultaneous double nanophases in the PVDF matrix, that is, homogeneously dispersed CB nanoparticles and organic PVDF-g-IL nanodomains. The organic nanodomains were produced by microphase separation of the PVDF-g-M chains from the PVDF matrix at melt state in the electron beam (EB) irradiated PVDF/IL-CB nanocomposites. Furthermore, the CB nanoparticles were fully adhered with these nanodomains, and novel structures with nanodomains@CB nanoparticle were achieved. Such nanodomains@CB nanoparticle structures showed a synergetic nucleating effect on the PVDF crystallization and led to the formation of dominant nonpolar alpha phases in the nano-PVDF/IL-CB composites. Because of the nanodomains adhesion of the CB nanoparticles, the nano-PVDF/IL-CB composites displayed a drastic reduction in dc conductivity compared with that of PVDF/ CB and PVDF/IL-CB composites, respectively. Importantly, the resultant nano-PVDF/IL-CB composites exhibited significantly decreased losses relative to that of PVDF/CB, PVDF/IL, and PVDF/IL-CB composites. The structures of nanodomains@CB-nanoparticle can be well responsible for this improvement of dielectric performance due to the fact that nanodomains confined the ion movements of IL in electric field and that their adhesion to the CB nanoparticle surfaces largely hindered the direct CB CB nanoparticle contacts, thus decreasing their leakage currents. Our strategy not only fabricates PVDF/CB dielectric materials with good CB dispersion, higher dielectric permittivity, lower conductivity, and lOwer loss but also paves a new strategy for fabricating nanocomposites with double nanophases in polymer matrix.
关键词Low Percolation-threshold Walled Carbon Nanotubes Low Dielectric Loss Temperature Ionic Liquids Antimicrobial Activities High-permittivity Thermal-conductivity Flexible Films Energy-storage Polymer
DOI10.1021/acs.macromol.5b02429
收录类别SCI
语种英语
WOS记录号WOS:000370113300032
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/25804
专题中科院上海应用物理研究所2011-2018年
通讯作者Li, YJ (reprint author), Hangzhou Normal Univ, Coll Mat Chem & Chem Engn, 16 Xuelin Rd, Hangzhou 310036, Zhejiang, Peoples R China.; Li, JY (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, CAS Ctr Excellence TMSR Energy Syst, 2019 Jialuo Rd, Shanghai 201800, Peoples R China.
推荐引用方式
GB/T 7714
Xing, CY,Wang, YY,Huang, XY,et al. Poly(vinylidene fluoride) Nanocomposites with Simultaneous Organic Nanodomains and Inorganic Nanoparticles[J]. MACROMOLECULES,2016,49(3):1026—1035.
APA Xing, CY.,Wang, YY.,Huang, XY.,Li, YJ.,Li, JY.,...&Li, JY .(2016).Poly(vinylidene fluoride) Nanocomposites with Simultaneous Organic Nanodomains and Inorganic Nanoparticles.MACROMOLECULES,49(3),1026—1035.
MLA Xing, CY,et al."Poly(vinylidene fluoride) Nanocomposites with Simultaneous Organic Nanodomains and Inorganic Nanoparticles".MACROMOLECULES 49.3(2016):1026—1035.
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