Ultrathin film electrodeposition of polythiophene conjugated networks through a polymer precursor route

Chuanjun Xia, Xiaowu Fan, Mi Kyoung Park, Rigoberto C. Advincula*

*この研究の対応する著者

研究成果: Article査読

59 被引用数 (Scopus)

抄録

The electrodeposition of polysiloxane precursor polymers to form cross-linked conjugated polythiophene ultrathin films is described. The precursor polymer contains a polysiloxane backbone with pendant electroactive thiophene monomer units synthesized via a hydrosilylation reaction. The thiophene units were electropolymerized by cyclic voltammetry. Investigations were made on the oxidation and reduction of the thiophene monomer and the polymers formed. A uniformly smooth layer-by-layer growth of the film was observed by repeated cycling based on the cyclic voltammogram, surface plasmon spectroscopy (SPS), and the atomic force microscopy images. The morphology of the film changed with increasing number of cycles being transformed from a relatively globular to a more membranelike morphology. Correlation was also made on the morphological changes with the electropolymerization process and the extent of cross-linking. UV-vis spectra showed clear evidence of polythiophene structure formation in the cross-linked polymer. SPS confirmed that the thickness of the deposited polymer film is easily controlled by the number of electrochemical potential cycles.

本文言語English
ページ(範囲)7893-7898
ページ数6
ジャーナルLangmuir
17
25
DOI
出版ステータスPublished - 2001 12 11
外部発表はい

ASJC Scopus subject areas

  • 物理化学および理論化学
  • コロイド化学および表面化学

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