Crosslinked Hydroxyl-Conductive Copolymer/Silica Composite Membranes Based on Addition-Type Polynorbornene for Alkaline Anion Exchange Membrane Fuel Cell Applications

被引：19
作者：
He, Xiaohui [1 ,2 ]
Jiang, Xiong [1 ]
Wang, Zijie [1 ]
Deng, Yingjiao [1 ]
Han, Zhilong [1 ]
Yang, Yingping [1 ]
Chen, Defu [3 ]
机构：
[1] Nanchang Univ, Sch Mat Sci & Engn, 999 Xuefu Ave, Nanchang 330031, Jiangxi, Peoples R China
[2] Nanchang Univ, Jiangxi Prov Key Lab New Energy Chem, 999 Xuefu Ave, Nanchang 330031, Jiangxi, Peoples R China
[3] Nanchang Univ, Sch Civil Engn & Architecture, 999 Xuefu Ave, Nanchang 330031, Jiangxi, Peoples R China
来源：
POLYMER ENGINEERING AND SCIENCE | 2018年 / 58卷 / 01期
基金：
中国国家自然科学基金;
关键词：
LITHIUM-ION BATTERIES; SOL-GEL METHOD; NORBORNENE; POLYMERIZATION; TEMPERATURE; ACID; STABILITY; COMPLEXES; BEARING; LIGAND;
D O I：
10.1002/pen.24524
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Crosslinked hydroxyl-conductive copolymer/silica composite membranes based on addition-type polynorbornene, poly(dodoxymethylene norbornene-co-norbornene-3-(trimethylpropyl ammonium)-functionalized silica (QP(DNB/NB-SiO2), were prepared by a sol-gel method. Copolymer composite membranes with different degree of quaternary ammonium functional silica, designated as QP(DNB/NB-SiO2-X) (X = 5, 10, 15 and 25 wt%, respectively), displayed good dimensional stabilities with low in-plane swelling rate of 1.32-3.7%, good mechanical properties with high elastic modulus of 605.4-756.8 MPa and high tensile strength of 13.2-20 Mpa. The achieved copolymer composite membranes could self-assemble into a microphase-separated morphology with randomly oriented long-range aliphatic chain/cylinder ionic channels that were imbedded in the hydrophobic PNB matrix. Among these membranes, the QP(DNB/NB-SiO2-25) showed the parameter with ionic conductivity of 9.33 x 10(-3)S cm(-1), methanol permeability of 2.89 x 10(-7)cm(2) s(-1), and ion-exchange capacity(IEC) of 1.19 x 10(-3) mol g(-1). A current density of 82.3mA cm(-2), the open circuit voltage of 0.65 V and a peek power density of 32 mW cm(-2) were obtained. (c) 2017 Society of Plastics Engineers
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页码：13 / 21
页数：9
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