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

作　　者：WeiFENG JianNianYAO 等 

机构地区：[1]DepartmentofChemistry,JilinUniversity,Changchun130023 [2]CenterforMolecularScience,InstituteofChemistry,ChineseAcademyofSciences,Beijing100080

出　　处：《Chinese Chemical Letters》2002年第5期460-463,共4页中国化学快报（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China (59932040).

摘　　要：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.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.

关 键 词：Tungstophosphate acid POLYACRYLAMIDE photochromism. 

分 类 号：O644[理学—物理化学]