基于BS-12/丙烯酰胺水凝胶的光致变色性能研究  

Study on photochromic properties of BS-12/acrylamide-based hydrogels

作　　者：王芷瑜 刘红茹[1] 王晓春[1,2] 席烁宇 Wang Zhiyu;Liu Hongru;Wang Xiaochun;Xi Shuoyu(School of Materials Design and Engineering,Beijing Institute of Fashion Technology,Beijing 100029;National Advanced Printing and Dyeing Technology Innovation Centre,Tai'an 271000)

机构地区：[1]北京服装学院材料设计与工程学院,北京100029 [2]国家先进印染技术创新中心,泰安271000

出　　处：《化工新型材料》2024年第10期108-112,共5页New Chemical Materials

基　　金：国家先进印染技术创新中心(ZJ2021A09)。

摘　　要：光致变色系统已被广泛用于视觉信息存储和紫外-红外光检测,但在便携性和反应灵敏度方面还需要改进。以十二烷基二甲基甜菜碱(BS-12)、丙烯酰胺(AAM)等为原料,钼酸铵为变色结构单元,采用一锅法制备了具有快速响应变色行为的十二烷基二甲基甜菜碱/聚丙烯酰胺-钼酸铵(BS-12/PAAm-Mo_(7))光致变色水凝胶,通过傅里叶变换红外光谱仪、扫描电子显微镜对水凝胶的结构和形貌进行了分析,考察了紫外光波长和照射时间、温度、变色结构单元含量等对水凝胶变色性能的影响。结果表明,制备的水凝胶具有良好的光致变色性能,可以实现从无色到蓝色的快速反应,具有良好的可逆性和稳定性。Photochromic systems have been widely used for visual information storage and ultraviolet-infrared(UV-IR)light detection,but they need to be improved in terms of portability and response sensitivity.Using dodecyldimethyl betaine(BS-12)and acrylamide(AAM)as raw materials and ammonium molybdate as the color-changing structural unit,dodecyldimethyl betaine/polyacrylamide-ammonium molybdate(BS-12/PAAm-Mo_(7))photochromic hydrogels with fast-responsive colour-changing behaviours were prepared by a one-pot method.The structure and morphology of the hydrogels were analysed by Fourier transform infrared spectroscopy and scanning electron microscopy,and the effects of UV wavelength and irradiation time,temperature,and the content of color-changing structural units on the photochromic performance of the hydrogels were investigated.The results showed that the prepared hydrogels had good photochromic properties,and could achieve rapid reaction from colourless to blue,with good reversibility and stability.

关 键 词：水凝胶 光致变色 钼酸铵 丙烯酰胺 

分 类 号：TB34[一般工业技术—材料科学与工程]