Facile charge transport and storage by a TEMPO-populated redox mediating polymer integrated with polyaniline as electrical conducting path
Facile charge transport and storage by a TEMPO-populated redox mediating polymer integrated with polyaniline as electrical conducting path
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DOI：
10.1038/pj.2014.124
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发表时间：
2015-02
期刊：
影响因子：
2.8
通讯作者：
K. Oyaizu;Hanae Tatsuhira;H. Nishide
中科院分区：
文献类型：
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作者：
K. Oyaizu;Hanae Tatsuhira;H. Nishide
通过开环易位聚合反应合成了TEMPO-苯胺取代的异丙基苯共聚物。在共聚物中的侧链苯胺基团的电聚合给出了一层聚苯乙烯填充的氧化还原活性克里思侧基，其中聚苯胺链被纳入。除了层的无定形性质之外，克里思悬垂物在整个层中的电活性及其优异的充电/放电循环性表明聚苯胺链均匀地分散在层中，并且每条链充当交联部分。通过原位电聚合法在共聚物/聚苯胺复合材料的预聚层中引入苯胺基团，进一步增强了聚苯胺链的作用。聚苯胺链作为一个导电的路径，以减少电荷转移电阻的氧化还原调解，这引起了一个优异的速率性能的充电/放电过程中的层，与那些TEMPO取代的聚合物与聚苯胺和其他导电添加剂的复合层相比，通过常规的研磨方法制备。
A copolymer of TEMPO-and aniline-substituted norbornene was prepared by ring-opening metathesis polymerization of the corresponding monomers. Electropolymerization of the pendant aniline groups in the copolymer gave a layer of polynorbornene populated with the redox-active TEMPO pendants, in which polyaniline chain was incorporated. Electroactivity of the TEMPO pendants throughout the layer and its excellent charging/discharging cyclability, in addition to the amorphous nature of the layer, suggested that the polyaniline chain was homogeneously dispersed in the layer and that each chain served as crosslinking moiety. The effect of the polyaniline chains was further enhanced when they were formed by in-situ electropolymerization of the aniline group in the preformed layer of the copolymer/polyaniline composite. The polyaniline chain served as a conducting path to reduce the charge-transfer resistance for redox mediation, which gave rise to an excellent rate performance for the charging/discharging process of the layer, compared with those for the composite layers of TEMPO-substituted polymers with polyaniline and other conductive additives prepared by the conventional grinding methods.