Schneider O, Bund A, Ispas A, Borissenko N, Zein El Abedin S, Endres F
Institut für Metallurgie, Technische Universität Clausthal, Robert-Koch-Str. 42, D-38678 Clausthal-Zellerfeld, Germany.
J Phys Chem B. 2005 Apr 21;109(15):7159-68. doi: 10.1021/jp044892r.
The direct electropolymerization of benzene dissolved in the ionic liquid 1-hexyl-3-methylimidazolium tris(pentafluoroethyl)trifluorophosphate was studied at room temperature applying the electrochemical quartz-crystal microbalance technique. Analysis of the damping changes showed that the Sauerbrey equation could be applied for data evaluation. In the polymer, every third to fourth benzene ring carried a positive charge in the oxidized state. During electropolymerization, some ionic liquid was absorbed in the growing polymer. The redox behavior was characterized by wide peaks typical for conducting polymers. Charge neutrality of the polymer during redox cycling was maintained by anion and cation exchange with the ionic liquid. With increasing scan rate, cation exchange became more and more important.
在室温下，采用电化学石英晶体微天平技术研究了溶解于离子液体1-己基-3-甲基咪唑三（五氟乙基）三氟磷酸盐中的苯的直接电聚合反应。对阻尼变化的分析表明，Sauerbrey方程可用于数据评估。在聚合物中，每三到四个苯环在氧化态时带有一个正电荷。在电聚合过程中，一些离子液体被吸收到正在生长的聚合物中。氧化还原行为的特征是具有导电聚合物典型的宽峰。在氧化还原循环过程中，聚合物通过与离子液体进行阴离子和阳离子交换来保持电荷中性。随着扫描速率的增加，阳离子交换变得越来越重要。
