Preparation and electrochemical characterizations of anion-permselective membranes with structurally stable ion-exchange sites
Preparation and electrochemical characterizations of anion-permselective membranes with structurally stable ion-exchange sites
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DOI：
10.1016/j.electacta.2015.08.105
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发表时间：
2015-10
影响因子：
6.6
通讯作者：
Yong-Jin Choi;Jee-Hye Song;Moon-Sung Kang;Bong-Kuk Seo
中科院分区：
文献类型：
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作者：
Yong-Jin Choi;Jee-Hye Song;Moon-Sung Kang;Bong-Kuk Seo
采用简单的单体吸附法制备了新型半互穿聚合物网络（semi-IPN）阴离子选择透过膜。基膜是通过甲基丙烯酸N，N '-二甲氨基乙酯（DMAEMA）和二乙烯基苯（DVB）在无孔聚氯乙烯（PVC）基底膜（即聚（DMAEMA-co-DVB）/PVC）中的原位聚合制备的。与双官能对二甲苯二氯的连续季铵化反应沿着形成彼此稠合的结构稳定的阴离子交换基团。各种表征（迁移数、电阻、I-V曲线和计时电位法等的测量）表明所制备的膜的电化学性能几乎与商业阴离子交换膜（AMX，Astom Corp.，日本）。此外，通过高电流条件下的水裂解实验证实了阴离子交换位点的结构稳定性。
Novel semi-interpenetrating polymer network (semi-IPN) anion-permselective membranes are preparedviaa facile monomer sorption method. The base membrane is prepared byin-situcopolymerization ofN,N’-dimethylaminoethyl methacrylate (DMAEMA) and divinylbenzene (DVB) in a non-porous poly(vinyl chloride) (PVC) substrate film (i.e. poly(DMAEMA-co-DVB)/PVC). The successive quaternization reaction along with di-functionalp-xylylene dichloride forms the structurally stable anion-exchange groups that are fused with one another. Various characterizations (measurements of the transport number, electrical resistance,I-Vcurves, and chronopotentiometry etc.) reveal that the electrochemical properties of the prepared membranes are almost comparable with those of a commercial anion-exchange membrane (AMX, Astom Corp., Japan). In addition, the structural stability of the anion-exchange sites is confirmed through the water-splitting experiments at a high applied current condition.