Organic-inorganic crosslinked and hybrid membranes derived from sulfonated poly(arylene ether sulfone)/silica via sol-gel process
Organic-inorganic crosslinked and hybrid membranes derived from sulfonated poly(arylene ether sulfone)/silica via sol-gel process
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通过溶胶-凝胶工艺衍生自磺化聚（亚芳基醚砜）/二氧化硅的有机-无机交联和杂化膜
DOI：
10.1016/j.jpowsour.2009.11.034
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发表时间：
2010-05
影响因子：
9.2
通讯作者：
Feng Shaoguang
中科院分区：
文献类型：
--
作者：
Xie Xiaofeng;Wang Yingzi;Shang Yuming;Feng Shaoguang
以丙烯基磺化聚芳醚砜（SPAES）和不同含量的乙烯基取代SiO2为原料，在过氧化苯甲酰（BPO）引发剂存在下，通过溶胶-凝胶法制备了一系列可共价交联的有机-无机杂化膜。所得膜的特征在于在氧化稳定性，热性能，离子交换容量（IEC），吸水率，在甲醇水溶液中的溶胀比，质子传导率，和甲醇渗透系数。结果表明，杂化膜的氧化稳定性和热稳定性得到改善。此外，二氧化硅的引入降低了膜的吸水率和甲醇溶胀。随着SiO2含量从0增加到12 wt.%，膜在2 molL-1甲醇水溶液中的溶胀率从26%缓慢下降到19%。随着SiO2含量的增加，杂化膜的甲醇渗透系数先减小后增大。当二氧化硅含量达到8 wt.%时，甲醇渗透系数最小为6.02×10 - 7 cm-2s-1，比未改性的SPAES膜降低了2.64倍。此外，发现在该二氧化硅含量下，质子传导率为原始聚合物的质子传导率的约95%。
A series of covalently crosslinkable organic–inorganic hybrid membranes have been prepared from sulfonated poly(arylene ether sulfone) (SPAES) with pendant propenyl moiety and various amounts of vinyl substituted silica via sol–gel process which are then thermally crosslinked in the presence of benzoyl peroxide (BPO) initiator. The obtained membranes are characterized in terms of oxidative stability, thermal property, ion exchange capacity (IEC), water uptake, swelling ratio in methanol aqueous solution, proton conductivity, and methanol permeability coefficient. The results indicate that the oxidative stability and thermal stability of the hybrid membranes are improved. Moreover, introduction of silica reduces the water uptake and methanol swelling of membranes. The swelling ratio of membranes in 2molL−1methanol aqueous solution at 80°C slowly decreases from 26 to 19% with the increase of SiO2content from 0 to 12wt.%. Furthermore, with the increase in silica content, the methanol permeability coefficient of the hybrid membranes decreases at first and then increases. When the silica content reaches 8wt.%, the methanol permeability coefficient is at the minimum of 6.02×10−7cm2s−1, a 2.64-fold decrease compared with that of the pristine SPAES membrane. Moreover, the proton conductivity is found to be at about 95% of that of pristine polymer at that silica content.
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影响因子：
9.5
作者：
Zhang Gaowen;Zhou Zhen-tao
通讯作者：
Zhang Gaowen;Zhou Zhen-tao
影响因子：
9.2
作者：
Scott, K;Taama, WM;Argyropoulos, P
通讯作者：
Argyropoulos, P
影响因子：
9.5
作者：
Yu-Huei Su;Ying‐Ling Liu;Yi-Ming Sun;J. Lai;Da-ming Wang;Yan Gao;Baijun Liu;M. Guiver
通讯作者：
Yu-Huei Su;Ying‐Ling Liu;Yi-Ming Sun;J. Lai;Da-ming Wang;Yan Gao;Baijun Liu;M. Guiver
影响因子：
3.2
作者：
I. Honma;H. Nakajima;S. Nomura
通讯作者：
I. Honma;H. Nakajima;S. Nomura
影响因子：
9.5
作者：
Jones, DJ;Rozière, J
通讯作者：
Rozière, J