大学化学2025，Vol.40Issue(4)：87-93,7.DOI:10.12461/PKU.DXHX202405143
巯基-烯烃点击聚合在高分子化学实验教学中的探索
Exploration of Thiol-Ene Click Polymerization in Polymer Chemistry Experiment Teaching
摘要
Abstract
The addition reaction between thiols and vinyl ethers is an anti-Markovnikov addition reaction based on a free radical mechanism,which proceeds efficiently under ultraviolet(UV)irradiation in the presence of photoinitiator or photosensitizer.In this experiment,triethylene glycol divinyl ether(TEGDVE)and 3,6-dioxa-1,8-octanedithiol(DODT)were selected as monomers to synthesize poly(ether-thioether)polymers through thiol-ene click stepwise polymerization.Nuclear magnetic resonance(NMR)was used to determine the molecular structure of the polymers,and gel permeation chromatography(GPC)was employed to measure the molecular weight of the obtained polymers.Strategies to achieve high-molecular-weight polyaddition products were explored by adjusting the molar ratio of monomers and polymerization time.The mechanism of the polymerization reaction was further verified by introducing radical scavengers.This experiment serves as a simple,efficient,green,and environmentally friendly comprehensive polymer chemistry experiment.关键词
巯-烯点击反应/二硫醇和二乙烯基醚/逐步聚合/分子量调控方法/凝胶渗透色谱Key words
Thiol-ene click reaction/Dithiol and divinyl ether/Stepwise polymerization/Molecular weight control method/Gel permeation chromatography分类
教育学引用本文复制引用
高利龙,翟禹豪,张冬冬,黄林军,隋坤艳..巯基-烯烃点击聚合在高分子化学实验教学中的探索[J].大学化学,2025,40(4):87-93,7.基金项目
国家自然科学基金(22275106) （22275106）
山东省自然科学基金(ZR2022ME107) （ZR2022ME107）
山东省高等学校青创团队计划创新团队(2023KJ363) （2023KJ363）
2023年度山东省属普通本科高校教师访学研修项目 （）
