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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Influence of Plastidzer Type on the Properties of Polymer Electrolytes Based on Chitosan
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Influence of Plastidzer Type on the Properties of Polymer Electrolytes Based on Chitosan

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Polymer electrolytes were obtained by the casting technique from a solution containing chitosan, hydrochloric acid, and plasticizer such as glycerol, ethylene glycol, and sorbitol. The transparent membranes with good ionic conductivity properties were characterized by impedance and UV-vis spectroscopies, thermal analysis (DSC), and X-ray diffraction. The best ionic conductivity values of 9.5×10~(-4) S cm~(-1) at room temperature and 2.5×10~(-3) S cm~(-1) at 80℃ were obtained for the sample containing 59 wt of glycerol and an equimolar amount of HC1 with respect to NH2 groups in chitosan. The temperature dependence of the ionic conductivity exhibits an Arrhenius behavior with activation energy of 16.6 kJ mol~(-1). The thermal analysis indicates that both glass transition temperature (-87℃) and crystallinity are low for this electrolyte. The samples with 13 wt of LiCF3SO3 showed that the ionic conductivity values of 2.2×10~(-5) S cm~(-1) at room temperature and 4×10~(-4) S cm-1 at 80℃ are predominantly amorphous and showed a low glass transition temperature of about -73H℃.

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