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D_4^(Vi)-丙烯酸酯共聚乳液的制备与表征 被引量:1

Synthesis and characterization of a 2,4,6,8-tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane (D_4^(Vi))-acrylate copolymeric latex
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摘要 以四甲基四乙烯基环四硅氧烷(D4Vi)、甲基丙烯酸甲酯(MMA)、丙烯酸丁酯(BA)和丙烯酸(AA)为原料,采用一次性投料法制得了有机硅-丙烯酸酯共聚乳液。探讨了反应温度、催化剂种类及用量对D4Vi转化率的影响。采用傅里叶红外光谱仪、透射电子显微镜、原子力显微镜对乳液结构及状态进行了表征。结果表明,以DV4i、MMA、AA、BA为主要原料,聚合反应温度为80℃,盐酸为催化剂且最佳用量为D4Vi质量的1.8%,可以制得涂膜表面光滑,没有明显相分离的有机硅-丙烯酸酯乳液。 A 2,4,6,8-tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane (D4Vi)-acrylate polymer latex has been prepared by the method of one-stage addition using 2,4,6,8-tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane (D4Vi),methyl methacrylate (MMA),butyl acrylate (BA) and acrylic acid (AA) as precursors. The effects of different types of catalyst,catalyst amount and reaction temperature on the extent of conversion of D4Vi were investigated. The structure and morphology of the latex products were characterized by FT-IR spectroscopy,TEM and AFM. The results indicated that a D4Vi-acrylate latex with a smooth surface coating and no obvious phase separation can be prepared using D4Vi,MMA,AA and BA with a polymerization temperature of 80 ℃ using HCl as a catalyst,with a catalyst loading of 1.8% of the mass of D4Vi.
出处 《北京化工大学学报(自然科学版)》 CAS CSCD 北大核心 2010年第6期76-80,共5页 Journal of Beijing University of Chemical Technology(Natural Science Edition)
关键词 四甲基四乙烯基环四硅氧烷 丙烯酸 有机硅-丙烯酸酯乳液 D4Vi acrylic acid silicone-acrylate latex
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