Macromolecular Research

The Polymer Society of Korea (한국고분자학회)
권호 표지

Preparation of New Polyelectrolyte/ Silver Nanocomposites and Their Humidity-Sensitive Properties

  • Park, Min-Su (Department of Chemistry and Institute of Basic Science, Dankook University) ;
  • Lim, Tae-Ho (Department of Chemistry and Institute of Basic Science, Dankook University) ;
  • Jeon, Young-Min (Department of Chemistry and Institute of Basic Science, Dankook University) ;
  • Kim, Jong-Gyu (Department of Chemistry and Institute of Basic Science, Dankook University) ;
  • Gong, Myoung-Seon (Department of Chemistry and Institute of Basic Science, Dankook University) ;
  • Joo, Sang-Woo (Department of Chemistry, Sungsil University)
  • Published : 2008.06.30
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Abstract

A simple strategy was developed based on polyelectrolyte/silver nanocomposite to obtain humidity-sensitive membranes. The major component of a humid membrane is the polyTEAMPS/silver nanocomposite obtained by thermal heating the mixture of a polyelectrolyte and silver isopropylcarbamate complex. Humidity sensors prepared from polyTEAMPS/silver (w/w=100/0 and 100/6) nanocomposites had an average impedance of 292, 8.83 and $0.86\;k{\Omega}$, and 5,327, 140 and $0.93\;k{\Omega}$ at 30,60 and 95% relative humidity (RH), respectively. Hysteresis, temperature dependence and response time were also measured. Activation energies and complex impedance spectroscopy of the various components of the polyelectrolyte/silver nanocomposite films were examined for the humidity-sensing membrane.

Keywords

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