Preparation, Photochromism and Electronic Properties of Keggin Type Tungstophosphate, Tungstosilicate Acids/Polyvinyl Alcohol Complexes

Abstract

Abstract: A series of tungstophosphate, tungstosilicate acid/polyvinyl alcohol complexs were prepared.Their properties were investigated by IR, UV, TG-DTA and conductivity measurement.The results showed that heteropolyacid had different photochromic properties in solution and thin films.The complexes thin films were proton conductors.Their conductivities increased when relative humidity increased and decreased when photochromism occurred in the thin films.

Key words: Heteropolyacid, Polyvinyl alcohol, Photochromism, Proton conductor

CLC Number:

O614.61

TrendMD:

TANG Li-Hao, YUE Bin, ZHU Si-San. Preparation, Photochromism and Electronic Properties of Keggin Type Tungstophosphate, Tungstosilicate Acids/Polyvinyl Alcohol Complexes[J]. Chem. J. Chinese Universities, 1999, 20(9): 1349.

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Preparation, Photochromism and Electronic Properties of Keggin Type Tungstophosphate, Tungstosilicate Acids/Polyvinyl Alcohol Complexes

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