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Enhancement of permittivity in P( VDF‐CTFE )/metal–organic frameworks mixed matrix membranes
Author(s) -
Jia QinXiang,
Yang DanHong,
Jin Li,
Zhang Zhicheng
Publication year - 2020
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.49539
Subject(s) - materials science , dielectric , electrospinning , ferroelectricity , permittivity , membrane , polymer , dielectric loss , chemical engineering , dielectric permittivity , composite material , polymer chemistry , chemistry , optoelectronics , biochemistry , engineering
A novel family of mixed matrix membranes (MMMs) with the combination of ferroelectric fluropolymers matrix (P(VDF‐CTFE)) and ferroelectric MOFs fillers ([NH 3 (CH 2 ) 4 NH 3 ][M(HCOO) 3 ] 2 (MCo II , Mg II , and Mn II ), have been synthesized and characterized, including the morphology, structures, and dielectric properties. Dielectric measurements revealed that the permittivity of the composites improved notablely with the introduction of ferroelectric MOFs fillers, while the dielectric loss was comparable to that of the polymer matrix. And also, interestingly, the enhancement of permittivity evidently dependent on the quantity and dielectric behavior of MOFs fillers, which may be valuable to the dielectric regulation of the polymer/MOFs MMMs. In addition, two different preparation methods were adopted respectively, including blending and electrospinning‐hot pressing. The comparison of the two preparation methods revealed that the blending MMMs exhibit higher permittivity and higher dielectric loss than that of the electrospinning‐hot pressing MMMs. To our knowledge, this is a novel research of high‐ε r dielectric MMMs fabricated by ferroelectric MOFs and ferroelectric fluropolymers, and this work may provide a new perspective on the further research of high‐ κ dielectric MMMs and the industrial application of ferroelectric MOFs.