Enhancements in conductivity and thermal and conductive stabilities of electropolymerized polypyrrole with caprolactam-modified clay

Yu Chuan Liu, Chenh Jung Tsai

研究成果: 雜誌貢獻文章同行評審

82 引文 斯高帕斯(Scopus)

摘要

In this study, a polypyrrole (PPy)/caprolactam-modified montmorillonite (MMT) clay composite was electropolymerized on a gold substrate. Basically, the nucleation and growth were instantaneous three-dimensional processes before and after nuclei overlapping for both pure PPy and the composite electropolymerizations. However, a distinguishable feature can be observed. The surface morphology of the resulting composite is denser and more compact. The composite demonstrates an extremely high oxidation level and oxidation degree of 0.41 and 0.59 revealed from the analyses of X-ray photoelectron spectroscopy (XPS) and surface-enhanced Raman scattering (SERS), respectively. The thermal stability of PPy is improved, as shown from thermogravimetric analysis (TGA), due to the modification of the incorporated clay. Also, the conductivity of the composite was significantly increased (∼12 times) and aging is depressed compared to that of pure PPy.

原文英語
頁(從 - 到)320-326
頁數7
期刊Chemistry of Materials
15
發行號1
DOIs
出版狀態已發佈 - 一月 14 2003
對外發佈

ASJC Scopus subject areas

  • 材料科學(全部)
  • 材料化學

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