Electrochemical performance of membranes based on hydrogenated polynorbornenes functionalized with imide side groups containing sulfonated fluorinated moieties

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• 作者：Arlette A. Santiago^a ; Joel Vargas^b ; Mikhail A. Tlenkopatchev^c ; ^{tma@servidor.unam.mx} ; Mar Ló ; pez-Gonzá ; lez^d ; ^{mar@ictp.csic.es} ; Evaristo Riande^d
• 关键词：Ring opening metathesis polymerization ; Sulfonated fluorinated polynorbornene dicarboximide ; Cation-exchange membrane
• 刊名：Journal of Membrane Science
• 出版年：2012
• 期刊代码：55_03767388
• 类别：ch
• 出版时间：1 June, 2012
• 卷：403-404
• 期：Complete
• 页码：121-128
• 文件大小：804 K

摘要

This work reports the electrochemical characteristics of a new cation-exchange membrane based on a polynorbornene functionalized with substituted dicarboximide side groups, specifically hydrogenated poly(N-4-oxybenzenesulfonic acid-2,3,5,6-tetrafluorophenyl-exo-endo-norbornene-5,6-dicarboximide). A thorough study on the electrochemical characteristics of the membrane involving osmotic flow, electromotive forces of concentration cells and proton conductivity is reported. This work shows that the polymer membrane exhibits a proton conductivity of 2.24 S/m at 30 掳C, the same order of magnitude as that reported for Nafion membranes at the same temperature. The proton permselectivity of the membrane is also discussed.