生物质化学工程2025，Vol.59Issue(3)：25-32,8.DOI:10.3969/j.issn.1673-5854.2025.03.004
松香接枝聚甲基丙烯酸甲酯及性能研究
Rosin Grafted Polymethyl Methacrylate and Its Properties
摘要
Abstract
The hydrophobic dehydroabietic acid-grafted poly(methyl methacrylate)(DA-PMMA)was synthesized via atom transfer radical polymerization(ATRP)using dehydroabietic acid initiator(DA-Br)and methyl methacrylate(MMA)as raw materials.Subsequently,the amphiphilic random copolymer(DA-PMMA-PMA)was obtained by introducing polymethacrylic acid(PMA)segments through acid hydrolysis,and the fluorescent DA-PMMA-PMA micelles were successfully prepared by solution self-assembly.The chemical structure and polymerization process were thoroughly characterized by Fourier transform infrared spectroscopy(FT-IR),proton nuclear magnetic resonance(1H NMR),ultraviolet-visible spectroscopy(UV-Vis),and gel permeation chromatography(GPC).The experimental results showed that the polymerization process of DA-PMMA followed first-order kinetics law and the reaction process had good controllability.The relative molecular weight of the polymer gradually increased with the extension of reaction time,and the polydispersity index(PDI)remained below 1.2,demonstrating excellent molecular weight uniformity.The DA-PMMA-PMA copolymer formed after acid hydrolysis was self-assembled into uniform micelles in solution,with a hydrodynamic diameter of about 79 nm and a distinct fluorescence emission peak at 405-430 nm.The results of UV-Vis and fluorescence spectroscopy analysis indicated that the introduction of dehydroabietic acid endowed DA-PMMA and DA-PMMA-PMA with significant UV absorption and fluorescence characteristics.关键词
松香/聚甲基丙烯酸甲酯/原子转移自由基聚合(ATRP)/两亲性胶束Key words
rosin/polymethyl methacrylate/atom transfer radical polymerization(ATRP)/amphiphilic micelles分类
化学工程引用本文复制引用
许超群,俞娟,范一民,王基夫,储富祥..松香接枝聚甲基丙烯酸甲酯及性能研究[J].生物质化学工程,2025,59(3):25-32,8.基金项目
国家自然科学基金资助项目(31901275) （31901275）
