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Citation: WANG Fang, MIN Shi-Xiong, LIU Fang, HAN Yu-Qi, FENG Lei, TONG Yong-Chun. Preparation of Helical Polyaniline Nanofibers by Interface Polymerization with Chiral Regents as Dopants and Conformation Inducer[J]. Chinese Journal of Applied Chemistry, ;2010, 27(5): 510-513. doi: 10.3724/SP.J.1095.2010.90431 shu

Preparation of Helical Polyaniline Nanofibers by Interface Polymerization with Chiral Regents as Dopants and Conformation Inducer

Key Laboratory of Resources and Environmental Chemistry of West China, Department of Chemistry, Hexi University, Zhangye 734000

Received Date: 30 June 2009
Revised Date: 26 October 2009

Helical polyaniline nanofibers were prepared by a facilel interface polymerization method with chiral regents D-and L-camphorsulfonic acid(D-and L-CSA) as dopants and conformation inducer.The as-prepared helical polyaniline nanofibers were characterized by FESEM,TEM,FTIR,UV-Vis spectroscopies.The results show that relatively uniform polyaniline nanofibers with a helical conformation and higher ratio of length to diameter(6:1~12:1) could be readily obtained by means of this method,the average diameter and the lengths were about 50 nm and in a range of 300~600 nm,respectively.The helical polyaniline nanofibers exist in more expanded coil molecular conformation in aqueous solution and show reversible doping-dedoping nature along with the change of pH value of solution.Cyclic voltammetry tests show that the helical polyaniline nanofibers exhibit good electrochemical activity in a 0.5 mol/L HCl aqueous solution.
- chiral dopant,
- helical polyaniline,
- nanofibers,
- interface polymerization
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