Photoresponsive thin films containing an azobenzene derivative intercalated with a layered double hydroxide  

作　　者：WANG XinRui LU Jun WEI Min DUAN Xue 

机构地区：[1]State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China

出　　处：《Chinese Science Bulletin》2010年第34期3894-3900,共7页

基　　金：supported by the National Natural Science Foundation of China,the 111 Project(B07004);the National Basic Research Program of China(2009CB939802);the Fundamental Research Funds for the Central Universities(ZZ0908).

摘　　要：Two kinds of optically transparent thin films with photochromic properties have been fabricated based on co-intercalation of 4-(4-anilinophenylazo)benzenesulfonate(AO5)and sodium dodecylbenzene sulfonate(SDS)into the galleries of a ZnAl layered double hydroxide(LDH)by two synthetic methods:solvent evaporation and in situ crystallization.The two films possess LDH crystallites in different orientations relative to the substrates depending on their fabrication method:horizontal and vertical.The relationship between the photochromic behavior of the interlayer chromophore and the orientation of the LDH crystallites is studied thoroughly.The orientation of the LDH crystallite influences the photochromic behavior of the films.The films exhibited different absorption and wettability characteristics,providing the potential for application of dye-LDH films as photochromic materials and light sensitive switches.Two kinds of optically transparent thin films with photochromic properties have been fabricated based on co-intercalation of 4-（4-anilinophenylazo）benzenesulfonate （AO5） and sodium dodecylbenzene sulfonate （SDS） into the galleries of a ZnA1 layered double hydroxide （LDH） by two synthetic methods： solvent evaporation and in situ crystallization. The two films possess LDH crystallites in different orientations relative to the substrates depending on their fabrication method： horizontal and vertical, The relationship between the photochromic behavior of the interlayer chromophore and the orientation of the LDH crystallites is stud- ied thoroughly. The orientation of the LDH crystallite influences the photochromic behavior of the films. The films exhibited different absorption and wettability characteristics, providing the potential for application of dye-LDH films as photochromic materials and light sensitive switches.

关 键 词：层状双金属氢氧化物 偶氮苯衍生物 光敏薄膜 光致变色行为 十二烷基苯磺酸钠 晶粒取向 光致变色材料 LDH 

分 类 号：TQ594[化学工程—精细化工] O614.31[理学—无机化学]