Electronic structure and doping behavior of PANI-NSA nanofibers investigated by resonance Raman spectroscopy

被引：53

作者：

do Nascimento, GM ^{[1
]}

Silva, CHB ^{[1
]}

Temperini, MLA ^{[1
]}

机构：

[1] Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, BR-05513970 Sao Paulo, Brazil

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2006年 / 27卷 / 04期

关键词：

micellar polymerization; nanofibers; polyaniline; Raman spectroscopy; Scanning Electron Microscopy;

D O I：

10.1002/marc.200500690

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polyaniline nanofibers (from 93 to 220 nm) doped with beta-naphtalenesulfonic acid (PANI-NSA) have been characterized. Nonhomogeneity in the thickness of fibers, as can be seen with scanning electron microscopy, is the reason for their instability under the HCl doping process. Resonance Raman spectral profiles of PANI-NSA fibers suggest a lower protonation state than the emeraldine salt forms. Observation of Raman bands, which are a result of cross-linking, confirms that one of the properties of the polymeric structure formed in micellar polymerization is the type of connection between chains.

引用

页码：255 / 259

页数：5

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