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Preparation of new polyelectrolyte/ silver nanocomposites and their humidity-sensitive properties

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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 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.

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Correspondence to Myoung-Seon Gong.

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Park, MS., Lim, TH., Jeon, YM. et al. Preparation of new polyelectrolyte/ silver nanocomposites and their humidity-sensitive properties. Macromol. Res. 16, 308–313 (2008). https://doi.org/10.1007/BF03218522

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  • DOI: https://doi.org/10.1007/BF03218522

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