高等学校化学学报2012，Vol.33Issue(11)：2501-2508,8.DOI:10.7503/cjcu20120239
手性聚苯胺纳米纤维的电化学制备
Electrochemical Preparation of Chiral Polyaniline Nanofibers
摘要
Abstract
Chiral polyaniline ( PANI) nanofibers were synthesized via facilely potentiostatic electropolymeriza-tion method without template in the presence of ( IS) -( +) -camphor-10-sulfonic acid(D-CSA) or ( IR) -( -)-camphor-10-sulfonic acid(L-CSA) as the dopant. The morphology and optical property of chiral PANI nanofibers were characterized with scanning electron microscopy ( SEM ) , transmission electron microscopy ( TEM ) , UV-Vis spectrum(UV-Vis) and circular dichroism(CD) . Combined with the average diameter of micelles and zeta-potential of different deposition solutions, the formation mechanism and the enhanced optical activity of the optical PANI nanofibers were studied. The morphology of PANI nanofibers without the helical structure was consistent with the change of the concentration of aniline in the deposition solution when the concerntion of CSA was 1 mol/L. Furthermore, the chiral PANI nanofibers induced by different chiral CSA exhibited mirror-imaged circular dichroism spectra with high ellipticity, indicating the stereochemical selectivity of the molecular structure of PANI chain in the electrodeposited process. The colors and optical activities of the chiral PANI nanofibers not only can be kept with the chemical dedoping/redoping treatment, but also can reversibly varied with the different oxidized forms which were controlled via electrochemical route.关键词
电聚合/聚苯胺纳米纤维/手性/圆二色光谱/旋光异构性Key words
Electropolymerization/ Polyaniline ( PANI) nanofiber/ Chiral/ Circular dichroism spectrum/Stereochemical selectivity分类
化学化工引用本文复制引用
翁少煌,周剑章,林仲华,林新华..手性聚苯胺纳米纤维的电化学制备[J].高等学校化学学报,2012,33(11):2501-2508,8.基金项目
国家自然科学基金(批准号:21021002)、福建省自然科学基金(批准号:2011J05023)和福建医科大学博士启动基金(批准号:2010BS006)资助. （批准号:21021002）
