Preparation of photochromic silk fabrics based on thiol-halogen click chemistry

International Conference on Mechanical Engineering and Applied Composite Materials

机械制造;材料科学

Fan, Ji^1,2 ; Wang, Wei^2 ; Yu, Dan^1,2

Key Laboratory of High Performance Fibers and Products, Ministry of Education, Donghua University, Shanghai

201620, China^1

College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai

201620, China^2

关键词: Click chemistry;    Color changes;    Color measurements;    Photochromic compound;    Photochromic properties;    Spirooxazines;    Thiol groups;    Tris(2-carboxyethyl) phosphine;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/307/1/012026/pdf
DOI  :  10.1088/1757-899X/307/1/012026

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this study, we have synthesized a photochromic compound 9′-(2-bromo-2-methylethoxycarbonyl)-1,3,3-trimethyl-spiro[2H-indole-2,3′-[3H]naphtha[2,1-b] [1,4]oxazine] and applied it to the silk fabric to acquire photochromic properties. First, tris (2-carboxyethyl) phosphine (TCEP) was used as a reducing agent to produce thiol groups on the surface of silk fabric. Then, these thiol groups will react with -Br groups of the spirooxazine via thiol-halogen click chemistry. The spirooxazine was characterized by FTIR and UV. And the color change properties of the as-prepared silk fabrics were evaluated by the color measurement methods. The results indicated that treated silk fabric has excellent photochromic properties.