Effect of ionic liquid anion and cation on the physico-chemical properties of poly(vinylidene fluoride)/ionic liquid blends

被引：76

作者：

Mejri, R. ^{[1
,2
]}

Dias, J. C. ^{[1
,3
]}

Lopes, A. C. ^{[1
]}

Hentati, S. Bebes ^{[2
]}

Silva, M. M. ^{[3
]}

Botelho, G. ^{[3
]}

Mao de Ferro, A. ^{[4
]}

Esperanca, J. M. S. S. ^{[4
]}

Maceiras, A. ^{[5
]}

Laza, J. M. ^{[5
]}

Vilas, J. L. ^{[6
]}

Leon, L. M. ^{[5
,6
]}

Lanceros-Mendez, S. ^{[1
]}

机构：

[1] Univ Minho, Ctr Dept Fis, P-4710057 Braga, Portugal

[2] Univ Carthage, Fac Sci Bizerte, Lab Chim Mat, Zarzouna 7021, Bizerte, Tunisia

[3] Univ Minho, Ctr Dept Quim, P-4710057 Braga, Portugal

[4] Univ Nova Lisboa, Inst Tecnol Quim & Biol Antonio Xavier, P-2780157 Oeiras, Portugal

[5] Univ Pais Vasco EHU, Fac Ciencia & Tecnol, Dept Quim Fis, E-48080 Bilbao, Spain

[6] Basque Ctr Mat Applicat & Nanostruct BCMat, Derio 48160, Spain

来源：

EUROPEAN POLYMER JOURNAL | 2015年 / 71卷

关键词：

Ionic liquids; Polymer composites; Electroactive polymers; Poly(vinylidene fluoride); CRYSTALLIZATION KINETICS; MELT-CRYSTALLIZATION; POLYMER ACTUATORS; IMIDAZOLIUM; PHASE; MEMBRANES; ELECTROLYTES; CONDUCTIVITY; FILMS;

D O I：

10.1016/j.eurpolymj.2015.07.058

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Poly(vinylidene fluoride), PVDF, has been blended with different ionic liquids (IL) in order to evaluate the effect of the different IL anions and cations on the electroactive beta-phase, thermal, mechanical and electrical properties of the polymer blend. [C2MIM][Cl], [C6MIM][Cl], [C10MIM][Cl], [C2MINI][NTf2], [C6MIM][NTf2], [C10MIM][NTf2] have been selected and were introduced in the polymer at a weight percentage of 40 wt%. It was found that the incorporation of ILs into the PVDF matrix leads to an increase of the 13-phase content due to the strong electrostatic interactions between the dipolar moments of PVDF and the ILs. Further, the incorporation of ILs into PVDF strongly decreases the elastic modulus and increases the electrical conductivity of the blend with respect to the pure polymer matrix, all these effects being accompanied by a modification of the crystallization kinetics, as indicated by the modified spherulitic microstructure. Thus, novel PVDF/IL blends films with high transparency, excellent antistatic properties, and highly polar crystal form fraction were successfully achieved. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：304 / 313

页数：10

共 41 条

[1] Conductivities and transport properties of gelled electrolytes with and without an ionic liquid for Li and Li-ion batteries [J].