【摘要】 采用单体后滴加的方法 ,用γ-甲基丙烯酰氧基丙基三甲氧基硅烷对不同丙烯酸酯乳液进行改性 ,通过乳液共聚合成了丙烯酸酯 -有机硅共聚物。对合成工艺进行了初步探索 ,通过红外光谱、DSC分析对产物进行了表征。研究了不同有机硅含量对共聚产物力学性能、吸水率的影响 ,证实了丙烯酸酯 -有机硅共聚物比纯丙烯酸酯具有更优良的力学性能和耐水性更多还原

【Abstract】 The procedure for preparing the acrylate on copolymers modified with 3-(trimethoxysilyl)propyl methacrylate was described. As the excellent physical properties of organosiloxane, the acrylate resins modified with these monomers can show the great UV stability, color retention and dirt pickup resistance. The structures of the copolymer as well as their T g were characterized by IR and DSC. The tensile and peeling strength and hydroscopicity of polymer films were also studied and analysized in accordance with the copolymer′s structures, especially the functions of silicone based chain segments. The results indicat that the copolymers prepared by emulsion polymerization possess excellent mechanical property and water resistance.更多还原