大学化学2024，Vol.39Issue(5)：354-362,9.DOI:10.3866/PKU.DXHX202312014
苯乙烯基吡啶鎓盐的光二聚反应及其在丝网印刷中的应用
Photodimerization of Styrylpyridinium Salt and Its Application in Silk Screen Printing
摘要
Abstract
Formylstyrylpyridinium salt(SBQ)is a water-soluble fluorescent diarylethene derivative.In aqueous solution,it undergoes a[2+2]photodimerization reaction under 365 nm ultraviolet light irradiation,yielding non-fluorescent photodimers.Upon exposure to 254 nm short-wavelength ultraviolet light,these photodimers can undergo photolysis of the cyclobutene ring,regenerating SBQ monomers and restoring fluorescence,making them suitable for optical information storage.In acidic aqueous solution,SBQ monomers can be grafted onto the polyvinyl alcohol skeleton through acetalization reaction,synthesizing a water-soluble photosensitive polymer material.When mixed with polyvinyl acetate emulsion,it forms a one-component silk screen printing photosensitive emulsion.Students can utilize the synthesized product to print patterns on paper and experimental clothing,as well as to fabricate printed circuit boards and explore additional applications.All synthetic reactions in this experiment are conducted in aqueous solution,offering safety,environmental friendliness,and adherence to green chemistry principles.关键词
水溶性感光高分子材料/光二聚反应/光信息存储/丝网印刷/印刷电路板Key words
Water-soluble photopolymers/Photodimerization/Optical information storage/Silk screen printing/Printed circuit boards分类
社会科学引用本文复制引用
毛承前,陈洋涵,白浩彤,黄俊儒,庄俊鹏..苯乙烯基吡啶鎓盐的光二聚反应及其在丝网印刷中的应用[J].大学化学,2024,39(5):354-362,9.基金项目
北京化工大学新工科新文科实验教学改革项目 （）
北京化工大学本科教改项目(2018BHDJGZ02) （2018BHDJGZ02）
