【摘要】 本工作研究了甲基丙烯酸2,2,2-三氟乙酯（TFEMA）和甲基丙烯酸（MAA）的共聚合。以超临界CO₂流体为反应介质，探讨了聚合物的特性，并对产物的结构和特性进行分析，同时探究了聚合物的自乳化行为，测试了自乳化乳液的形貌和粒径。结果表明，在超临界CO₂流体中TFEMA和MAA可以进行聚合反应，产物为白色粉末，分子量和玻璃化转变温度等特性与反应介质密切相关。聚合产物在一定条件下可以分散到水相成为自乳化乳液，乳胶粒为近似球形结构，粒径大小为200-300 nm。更多还原

【Abstract】 This study investigates the copolymerization of 2,2,2-trifluoroethyl methacrylate （TFEMA）and methacrylic acid （MAA）.Supercritical CO₂ fluid was used as the reaction medium to explore the characteristics of the resulting polymers,including structural and characteristic analysis of the products,as well as an investigation into the self-emulsification behavior of the polymers.The morphology and particle size of the self-emulsified emulsions were also tested.The results indicate that TFEMA and MAA can undergo polymerization in supercritical CO₂ fluid,yielding a white powder.Properties such as molecular weight and glass transition temperature are closely related to the reaction medium.Under certain conditions,the polymer product can disperse in an aqueous phase to form a self-emulsified emulsion with latex particles exhibiting a nearly spherical structure and a particle size ranging from 200 to 300 nm.更多还原