화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.16, No.4, 308-313, June, 2008
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Preparation of New Polyelectrolyte/ Silver Nanocomposites and Their Humidity-Sensitive Properties
Min-Su Park, Tae-Ho Lim, Young-Min Jeon, Jong-Gyu Kim, Myoung-Seon Gong†, and Sang-Woo Joo1
  • Department of Chemistry and Institute of Basic Science, Dankook University, Chungnam 330-714, Korea
  • 1Department of Chemistry, Sungsil University, Seoul 156-743, Korea
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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 kΩ, and 5,327, 140 and 0.93 kΩ 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 humiditysensing membrane.
Keywords:silver nanoparticles;humidity sensor;polyelectrolyte/Ag nanocomposite;silver alkylcarbamate complex
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