Citation: Wei FENG, Tie Rui ZHANG, Yan LIU, Ran LU, Ying Ying ZHAO, Jian Nian YAO. Preparation and Photochromic Behavior of Novel Hybrid Inorganic-Organic Thin Film[J]. Chinese Chemical Letters, ;2002, 13(5): 460-463. shu

Preparation and Photochromic Behavior of Novel Hybrid Inorganic-Organic Thin Film

1.
Department of chemistry, Jilin University, ChangChun 130023;
2.
Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080

Received Date: 21 August 2001

Fund Project: This work was supported by the National Natural Scicncc Foundation of China (59932040).

A novel photochromic complex comprising of Keggin type tungstophosphate acid (PW₁₂) and polyacrylamide (PAM) was prepared. FT-IR results showed that the Keggin geometry of PW₁₂ was still preserved inside the composite, and a charge-transfer bridge was built between PW₁₂ and PAM via hydrogen bond. AFM images indicated that surface topography of polymer matrix changed after adding PW₁₂. Under UV irradiation, the film was reduced photochemically to yield a blue species, which was reversible in the present of oxygen in polymeric network.
- 12-Tungstophosphate acid,
- polyacrylamide,
- photochromism
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