Preparation of Porous Aromatic Polyamide Membranes and Their Dielectric Properties

被引：0
|
作者：
Zhu H. [1 ]
Niu M. [2 ]
Huang G. [3 ]
Wang Q. [3 ]
Liang Z. [3 ]
Jiao Q. [1 ,4 ]
Feng C. [1 ]
Zhao Y. [1 ]
Lü Y. [2 ]
机构：
[1] Shool of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing
[2] State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing
[3] Zhuhai RONSENG Super Micro-Wire Co., Ltd., Zhuhai
[4] College of Materials and the Environment, Beijing Institute of Technology, Zhuhai
来源：
Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology | 2021年 / 41卷 / 10期
关键词：
Dielectric constant; Non-solvent induced phase separation; Poly m-phenylene isophth alamide (PMIA); Porous membrane;
D O I：
10.15918/j.tbit1001-0645.2020.179
中图分类号：
学科分类号：
摘要：
Poly m-phenylene isophth alamide(PMIA) was synthesized using m-phenylenediamine and isophthaloyl chloride as monomers, 2-methylpyridine as acid binding agent by the low-temperature solution polymerization in N, N-dimethylacetamide (DMAc). Porous PMIA membranes with different pore structures were then prepared by non-solvent induced phase separation, and ethanol was used as non-solvent coagulation bath. The structures of PMIA were characterized by Fourier transform infrared and 1H-nuclear magnetic resonance. The influence of polymer concentration on the pore structure and dielectric constant of the porous PMIA membrane was studied. Results show that when the concentration of PMIA is 21%, 17% and 15%, porous membranes with regular pore morphologies can all be obtained. Their dielectric constants are 2.31, 2.07 and 1.89 respectively at 1 MHz, decreased by 63%, 67% and 70% than 6.22 of PMIA standard membrane. © 2021, Editorial Department of Transaction of Beijing Institute of Technology. All right reserved.
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页码：1114 / 1119
页数：5
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