Microthermal analysis of rubber-polyaniline core-shell microparticles using frequency-dependent thermal responses

Changshu Kuo, Chien Chung Chen, William Bannister

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Alternating current (ac) thermal microscopy and microthermal analysis have been utilized for the investigation in the surface thermal conductivity imaging and local thermal analysis (LTA) of polybutadiene-polyaniline core-shell microparticles. The significant variances of thermal conductivity and stiffness between rubber and conducting polymer revealed the remarkable responses in the microthermal analysis. The depth-dependent thermal microscopy controlled by the heating frequency distinguished the rubber core, which was buried under few micron thickness of polyaniline out layer. Local thermal analysis also demonstrated the heat penetration-dependent sensor response from the rigid polyaniline shell to soft polybutadiene core. These experimental results confirmed the core-shell structure of these microparticle materials, as well as the continuous conducting phase of polyaniline.

Original languageEnglish
Pages (from-to)115-127
Number of pages13
JournalThermochimica Acta
Volume403
Issue number1
DOIs
Publication statusPublished - Jun 26 2003
Externally publishedYes

Keywords

  • Core-shell
  • Microthermal analysis
  • Polyaniline
  • Polybutadiene
  • Scanning thermal microscopy

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

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