Abstract
Dielectric and AC conductivity behavior of Hexanoyl Chitosan-NaI based polymer electrolytes
Highlights
Chitosan, a natural polymer was chosen as a polymer host due to the presence of lone pair electrons at the nitrogen and oxygen atoms which enables coordination with the cation from the salt
The salted hexanoyl chitosan electrolytes were prepared by incorporating NaI as the doping salt
The aim of this paper is to study the dielectric properties of SPE based on hexanoyl chitosan-NaI
Summary
A natural polymer was chosen as a polymer host due to the presence of lone pair electrons at the nitrogen and oxygen atoms which enables coordination with the cation from the salt. The insolubility of chitosan in a large number of solvents has limited it to be utilized widely. This is due to the rigid crystalline structure of chitosan caused by the formation of hydrogen bonding between amino and hydroxyl groups (Aziz et al, 2012). Hexanoyl substituted chitosan was prepared and it is known as hexanoyl chitosan. The salted hexanoyl chitosan electrolytes were prepared by incorporating NaI as the doping salt. NaI salt was chosen because of its availability in abundance at a cheaper cost. The aim of this paper is to study the dielectric properties of SPE based on hexanoyl chitosan-NaI. The observed frequency and temperature dependence of ac conductivity were analyzed using existing theoretical models to investigate the conduction mechanism
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