聚氨酯/聚丙烯酸酯互穿网络结构聚合物的制备  

Synthesis of Polyurethane-Polyacrylate Interpenetrating Network Polymer

作　　者：杨珍娥[1] 李国明[1] 程利霞[1] 钱程根[1] 

机构地区：[1]华南师范大学化学与环境学院,广东广州510006

出　　处：《华南师范大学学报（自然科学版）》2012年第4期82-86,共5页Journal of South China Normal University(Natural Science Edition)

基　　金：广东高校高分子新型材料产学研结合示范(暨研究生创新培养)基地项目(cgzhzd1007)

摘　　要：以对苯二甲酸、己二酸、戊二醇、三羟甲基丙烷、甲苯二异氰酸酯等为原料合成的聚氨酯预聚体为组分,加入以甲基丙烯酸甲酯、甲基丙烯酸缩水甘油酯、丙烯酸丁酯和苯乙烯混合的烯烃,制备了具有互穿网络结构的聚氨酯/聚丙烯酸酯新型粉末树脂.该树脂为球形粉末颗粒,平均粒径约3μm,具良好的稳定分散状态.加入邻苯二甲酸酐作交联剂,进行固化制成互穿网络型涂膜,其硬度、粘结力等明显高于单一聚氨酯、聚丙烯酸酯以及2种聚合物的共混物的相关性能.A novel copolymer spherical power resin, in stable decentralized state and with a mean grain size of 3 μm, of interpenetrating networks of polyurethane （the first network in which terephthalic acid, hexane diaeid, neo- pentyl glyol, trimethylolpropane and toluene diisocynate were used for the mixed monomers） and polyacrylate （the second one in which methyl methaerylate, glycidyl methacrylate, butly acrylate and styrene were used for the mixed monomers） was prepared by micro -suspension polymerization. The powder resins reacted with phthalic anhydride as crosslinking agent to form a cured film with an interpenetrating network structure. The film structure was charac- terized by thermo analysis, infrared spectroscopic analysis and measurements of physicochemical properties. The re- sult showed that the hardness, cohesive force, acid - alkali and water resistance are better than the single polymer of polyurethane or polyacrylate and the mixture of the two.

关 键 词：微悬浮 聚氨酯 丙烯酸树脂 涂料 互穿网络聚合物 

分 类 号：O631[理学—高分子化学]