引用本文:
王芳, 敏世雄, 刘芳, 韩玉琦, 冯雷, 佟永纯. 界面聚合法合成手性掺杂剂诱导螺旋形聚苯胺纳米纤维[J]. 应用化学,
2010, 27(5): 510-513.
doi:
10.3724/SP.J.1095.2010.90431
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
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
界面聚合法合成手性掺杂剂诱导螺旋形聚苯胺纳米纤维
摘要:
以手性试剂D-樟脑磺酸(D-CSA)和L-樟脑磺酸(L-CSA)为掺杂剂和构象诱导剂,采用界面聚合法合成了螺旋形聚苯胺纳米纤维。通过FESEM、TEM、FTIR和UV-Vis吸收光谱等测试技术对螺旋形聚苯胺纳米纤维结构进行了表征。结果表明,所得聚苯胺纤维具有螺旋形构象,形貌均一,平均直径约为50nm,长度为300~600nm,具有较高的长径比(6:1~12:1)。在水溶液中,聚苯胺纳米纤维以伸展的螺旋形分子链构象存在,调节溶液的pH值,螺旋形聚苯胺纳米纤维表现出可逆的掺杂和脱掺杂性质。循环伏安(CV)测试表明,螺旋形聚苯胺纳米纤维在0.5mol/LHCl溶液中表现出良好的电化学活性。
English
Preparation of Helical Polyaniline Nanofibers by Interface Polymerization with Chiral Regents as Dopants and Conformation Inducer
Abstract:
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.
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Key words:
- chiral dopant
- / helical polyaniline
- / nanofibers
- / interface polymerization
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