Low Potential Electrochemical Synthesis of Polyfuran and Characterization of the Obtained Free-Standing Film
Low Potential Electrochemical Synthesis of Polyfuran and Characterization of the Obtained Free-Standing Film
复制标题
DOI：
10.1021/cm9900453
复制
发表时间：
1999-09
影响因子：
8.6
通讯作者：
Xiaobo Wan;F. Yan;Shi Jin;Xiaorong Liu;G. Xue
中科院分区：
文献类型：
--
作者：
Xiaobo Wan;F. Yan;Shi Jin;Xiaorong Liu;G. Xue
在由三氟化硼-乙醚（BFEE）和附加乙醚（EE）组成的二元溶剂体系中，通过电化学聚合，在低电位（1.2 V vs Ag/AgCl）下成功地合成了独立的呋喃（PFu）薄膜。所得聚合物的开环成分比化学方法或电聚合法制备的聚合物少得多，且具有更高的导电性。在电化学掺杂和I2化学掺杂状态下，其电导率均高达10-2 S cm-1。此外，获得的独立薄膜具有良好的机械性能，使其成为其他导电聚合物的有力竞争对手。采用表面增强拉曼光谱（SERS）和反射-吸收红外光谱（RA-IR）技术研究了沉积在Au和不锈钢电极上的PFu的取向。聚合物链中的呋喃环在初期倾向于平行于金属表面排列。
A free-standing polyfuran (PFu) film has been successfully synthesized by electrochemical polymerization of furan at low potential (1.2 V vs Ag/AgCl) in a binary solvent system consisting of boron trifluoride−ethyl ether (BFEE) and additional ethyl ether (EE). The obtained polymer contains much less ring-opened component and shows higher conductivity than that prepared by chemical method or by electropolymerization in other solvent systems. Its electric conductivity is as high as 10-2 S cm-1 both in its electrochemically doped state and chemically doped state with I2. Moreover, the obtained free-standing film shows good mechanical properties, which makes itself a powerful competitor to other conducting polymers. The orientation of PFu deposited on Au and stainless steel electrode was investigated by surface enhanced Raman spectra (SERS) and reflection−absorption infrared spectra (RA-IR) techniques. The furan ring in the polymer chain is inclined to be arranged parallel to the metal surface at the early st...