Synthesis and performance of proton conducting chitosan/NH4Cl electrolyte |
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Authors: | J F Du Y Bai W Y Chu L J Qiao |
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Institution: | Corrosion and Protection Center, Environmental Fracture Laboratory (Education of Ministry), University of Science and Technology Beijing, Beijing 100083, People's Republic of China |
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Abstract: | The polymer electrolytes based on chitosan and ammonium chloride were prepared by solution casting technique and the properties were studied. The addition of ammonium chloride results in: (1) the enhancement of the amorphous nature of the polymer electrolytes; (2) the shift of the absorption bands of amino group at 1566 cm?1 and the carbonyl group at 1640 cm?1 towards lower wave number, and the appearance of a new absorption band at 1759 cm?1; (3) a decrease of the glass transition temperature. The 20 wt % ammonium chloride doped polymer electrolyte has the best room temperature electric property, the lowest activation energy and the highest ionic conductivity. Placing the as‐prepared polymer electrolyte in a dryer is adverse for the sample's moisture content, and results in higher activation energy and lower ionic conductivity. © 2009 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 48: 260–266, 2010 |
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Keywords: | activation energy chitosan glass transition proton conductivity |
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