Branched and cross-linked proton conductive poly(arylene ether sulfone) ionomers : Synthesis and properties
Branched and cross-linked proton conductive poly(arylene ether sulfone) ionomers : Synthesis and properties
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DOI：
10.1002/macp.200600077
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发表时间：
2006-08
影响因子：
2.5
通讯作者：
Yohei Chikashige;Yoshiki Chikyu;K. Miyatake;Masahiro Watanabe
中科院分区：
文献类型：
--
作者：
Yohei Chikashige;Yoshiki Chikyu;K. Miyatake;Masahiro Watanabe
合成了一系列含芴基的支化和交联聚芳醚砜离聚物2b-e，以研究这些化学改性对性能的影响。离聚物2b-e通过从DMAc溶液流延得到柔性、延展性和透明的膜。支化和交联可有效提高潮湿条件下的尺寸稳定性，而不会失去其高热、氧化和水解稳定性。交联离聚物2 e（IEC = 2.63meq· g-1）膜在87%RH和57%RH下的质子电导率分别为0.2S· cm-1和0.02S· cm-1。支化离聚物2b膜在质子传导性方面耐久几乎2个月而没有任何化学降解。
A series of branched and cross-linked poly (arylene ether sulfone) ionomers containing sulfofluorenyl groups, 2b-e were synthesized in order to investigate the effect of these chemical modifications on the properties. Ionomers 2b-e gave a flexible, ductile, and transparent membrane by casting from DMAc solution. The branching and cross-linking were effective to improve the dimensional stability under wet conditions without losing their high thermal, oxidative, and hydrolytic stability. The cross-linked ionomer 2e (IEC = 2.63 meq · g -1 ) membrane showed high proton conductivity of 0.2 S · cm -1 at 87% RH and 0.02 S · cm -1 at 57% RH. The branched ionomer 2b membrane was durable in proton conductivity for almost 2 months without any chemical degradation.