水溶性导电高分子聚噻吩及其水凝胶的掺杂行为研究

Study on the Doping Behavior of Water-Soluble Conducting Polythiophene and its Hydrogels

摘要: 用碘和高氯酸作掺杂剂对水溶性导电高分子聚（3-羧甲基噻吩）及其水凝胶的掺杂行为进行了系统研究。结果发现水溶胀聚（3-羧甲基噻吩）凝胶及其高分子很容易被高氯酸或碘的水溶液进行掺杂，且其掺杂能力强烈依赖于掺杂剂溶液浓度。对碘掺杂的高分子溶液，其掺杂过程不很稳定同时伴随着脱掺杂过程的发生，而对于聚噻吩凝胶，高氯酸极易使其掺杂，而且一旦掺杂则在掺杂状态下具有相对的稳定性。

Abstract: Doping behavior of water soluble conducting poly(3 thiopheneacetic acid)(P3TAA) and its gels were studied by using I 2 or HClO 4 solution as a dopant. It is found that the water swollen P3TAA gel and polymer can easily be doped by HClO 4 or I 2, an