Phthalimidine based fluorinated sulfonated poly(arylene ether sulfone)s copolymer proton exchange membranes
Phthalimidine based fluorinated sulfonated poly(arylene ether sulfone)s copolymer proton exchange membranes
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DOI：
10.1016/j.memsci.2013.01.059
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发表时间：
2013-05-15
影响因子：
9.5
通讯作者：
Voit, Brigitte
中科院分区：
文献类型：
--
作者：
Mukherjee, Rajdeep;Mohanty, Aruna Kumar;Voit, Brigitte
采用直接缩聚法合成了一系列芳族含氟磺化聚芳醚砜（PAQSH-XX）共聚物。通过FTIR和NMR（H-1，C-13，（19）F）光谱证实了共聚物的结构。共聚物在N，N-二甲基乙酰胺（DMAc）中的溶液显示出高分子量和坚韧膜。共聚物显示出高的热稳定性和氧化稳定性和高的机械性能取决于它们的化学组成。膜的透射电子显微镜（TEM）图像显示相分离的形态与离子簇的大小从2到17 nm。共聚物显示出良好的尺寸稳定性和低吸水值。离子交换容量（IECW）的共聚物计算从单体组成获得的H-1 NMR光谱和测定的三重法。PAQSH-XX膜的质子传导率随着IECW值和温度的增加而增加;对于PAQSH-60共聚物，在80 ° C下达到50 mS/cm的最大值。(C)2013爱思唯尔有限公司版权所有。
A series of phthalimidine based aromatic fluorinated sulfonated poly(arylene ether sulfone) (PAQSH-XX) copolymers were prepared by direct polycondensation reaction. The copolymer structures were confirmed by FTIR and NMR (H-1, C-13, (19) F) spectroscopy. The copolymers showed high molecular weight and tough membranes were obtained from their solution in N,N-dimethylacetamide (DMAc). The copolymers showed high thermal and oxidative stability and high mechanical properties depending upon their chemical compositions. Transmission electron microscopy (TEM) images of the membranes showed phase separated morphology with ionic cluster sizes from 2 to 17 nm. The copolymers showed good dimensional stability and low water uptake values. Ion exchange capacity (IECW) of the copolymers was calculated from the monomer composition obtained from H-1 NMR spectroscopy and determined by tritemetric methods. The proton conductivities of PAQSH-XX membranes increased with IECW value and temperature; a maximum value of 50 mS/cm at 80 degrees C for PAQSH-60 copolymer was achieved. (C) 2013 Elsevier B.V. All rights reserved.