含氯化铜的紫精/聚合物薄膜制备及光致变色性能研究

doi:10.7517/j.issn.1674-0475.2010.01.29

影像科学与光化学 ›› 2010, Vol. 28 ›› Issue (1): 29-36.DOI: 10.7517/j.issn.1674-0475.2010.01.29

含氯化铜的紫精/聚合物薄膜制备及光致变色性能研究

李志斌, 李玲, 张振林, 王跃川

四川大学, 高分子科学与工程学院, 高分子材料工程国家重点实验室, 四川, 成都, 610065

收稿日期:2009-07-02 修回日期:2009-09-15 出版日期:2010-01-23 发布日期:2010-01-23
通讯作者: 王跃川(1958-), 教授, 博士生导师, 主要从事光电功能高分子、光聚合及聚合物合成方面的研究工作, 电话:028-85405243.
基金资助:
广东省重大科技专项(2008A090300014)

Preparation and Photochromic Properties of Viologen/Polymer Film Blended with Copper Chloride

LI Zhi-bin, LI Ling, ZHANG Zhen-lin, WANG Yue-chuan

State Key Lab for Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, Sichuan, P.R.China

Received:2009-07-02 Revised:2009-09-15 Online:2010-01-23 Published:2010-01-23

摘要/Abstract

摘要： 将氯化铜加入到紫精/聚乙烯吡咯烷酮中,制得了一种可快速褪色、光疲劳性能优异的紫精/聚合物光致变色薄膜,测试了该薄膜的变色性能、褪色性能及光疲劳性能.结果表明,氯化铜的加入使薄膜初次紫外光照时的颜色变浅,但加快了薄膜褪色;当氯化铜与紫精摩尔比为1:1、60℃褪色时,薄膜光照后在610 nm处吸光度的半衰期为9 min,而不合氯化铜的薄膜为54 min,氯化铜含量越高,半衰期越短.含有氯化铜的薄膜,随变色/褪色循环次数增加,光照后的显色加深,氯化铜含量越高,颜色增加的程度越大.该功能薄膜可用于信息存储、太阳镜及智能窗等方面.

关键词: 光致变色, 紫精, 氯化铜, 半衰期, 光疲劳

Abstract: Fast erasable photochromic films with well photofatigue property are prepared by blending of copper chloride into viologen/polyvinylpyrrolidone mixture.Photochromic performance,thermal fading and photofatigue properties of the films were studied.It has been found that with the addition of copper chloride there is color lost in the first UV irradiation,but the fading rate of the colored films are faster.The half life at 60℃of the film,prepared by exposing to UV irradiation for 80 s and mole ratio of copper chloride to viologen 1:1,is abut 9 min,in comparing with 54 min for the film with no copper chloride.The higher mole ratio of copper chloride in the films,the faster the thermal erasing rate is.With increasing of coloring-discoloration cycle number,the photochromic color of the films become much deeper,and the more copper chloride in the films,the deeper the color is.These photochromic films can be used for information storage,sunglass and smart windows.

Key words: photochromism, viologen, copper chloride, half life, photofatigue

中图分类号:

李志斌, 李玲, 张振林, 王跃川. 含氯化铜的紫精/聚合物薄膜制备及光致变色性能研究[J]. 影像科学与光化学, 2010, 28(1): 29-36.

LI Zhi-bin, LI Ling, ZHANG Zhen-lin, WANG Yue-chuan. Preparation and Photochromic Properties of Viologen/Polymer Film Blended with Copper Chloride[J]. Imaging Science and Photochemistry, 2010, 28(1): 29-36.

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含氯化铜的紫精/聚合物薄膜制备及光致变色性能研究

Preparation and Photochromic Properties of Viologen/Polymer Film Blended with Copper Chloride

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