一种制备聚苯胺纳米纤维的通用化学方法。
A general chemical route to polyaniline nanofibers.
作者信息
Huang Jiaxing, Kaner Richard B
机构信息
Department of Chemistry and Biochemistry and California NanoSystems Institute, University of California, Los Angeles, California 90095-1569, USA.
出版信息
J Am Chem Soc. 2004 Jan 28;126(3):851-5. doi: 10.1021/ja0371754.
Uniform polyaniline nanofibers readily form using interfacial polymerization without the need for templates or functional dopants. The average diameter of the nanofibers can be tuned from 30 nm using hydrochloric acid to 120 nm using perchloric acid as observed via both scanning and transmission electron microscopy. When camphorsulfonic acid is employed, 50 nm average diameter fibers form. The measured Brunauer-Emmett-Teller surface area of the nanofibers increases as the average diameter decreases. Further characterization including molecular weight, optical spectroscopy, and electrical conductivity are presented. Interfacial polymerization is shown to be readily scalable to produce bulk quantities of nanofibers.
均匀的聚苯胺纳米纤维可通过界面聚合轻松形成，无需模板或功能性掺杂剂。通过扫描电子显微镜和透射电子显微镜观察发现，使用盐酸时纳米纤维的平均直径可从30纳米调节至使用高氯酸时的120纳米。当使用樟脑磺酸时，会形成平均直径为50纳米的纤维。纳米纤维的测量比表面积随着平均直径的减小而增加。还展示了包括分子量、光谱学和电导率在内的进一步表征。结果表明，界面聚合易于扩大规模以大量生产纳米纤维。
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