沉淀聚合制备GMA型聚丙烯酸酯  

Preparation of GMA-acrylic resin by precipitation polymerization

作　　者：周庆丰 耿秀芳 潘明旺[3] 

机构地区：[1]天津凯华绝缘材料股份有限公司,天津市300300 [2]天津华彩信合电子科技集团股份有限公司,天津市300051 [3]河北工业大学化工学院,天津市300130

出　　处：《合成树脂及塑料》2015年第4期18-22,共5页China Synthetic Resin and Plastics

摘　　要：采用沉淀聚合法以乙二醇单甲醚与去离子水为分散介质,在没有使用稳定剂的情况下,成功地合成了甲基丙烯酸缩水甘油酯（GMA）-甲基丙烯酸甲酯（MMA）-丙烯酸丁酯（BA）三元共聚聚丙烯酸酯（简称GMA型聚丙烯酸酯）。用质量分析法测试了单体转化率,利用扫描电子显微镜、红外光谱仪与核磁共振氢谱仪和凝胶渗透色谱仪研究了GMA型聚丙烯酸酯粒子的形貌及分布,表征了树脂的结构,在107.0℃条件下,树脂的数均分子量和相对分子质量分布指数分别为5 895和1.61。通过调整m（MMA）：m（BA）,可以调控GMA型聚丙烯酸酯的玻璃化转变温度在50.0-70.0℃。树脂的环氧值0.17-0.20 mol/g。该树脂适用于粉末涂料中。Glycidyl methacrylate（GMA）-methyl methacrylate（MMA）-n-butyl acrylate（BA） terpolymer（abbreviated to GMA-acrylic resin） was synthesized via precipitation polymerization without using of stabilizer and with a mixture of 2-methoxyl ethanol and deionized water as mediums.Monomer conversion was tested by mass analysis.The structure,particle morphology and distribution of the GMA-acrylic resin were characterized with scanning electron microscopy（SEM）,infrared spectroscopy（IR）,hydrogen nuclear magnetic resonance（^1H-NMR） and gel permeation chromatography（GPC）.Number average molecular mass and its distribution of the GMA-acrylic resin at 107.0 ℃ are 5 895 and 1.61,respectively.The glass transition temperature of the GMA-acrylic resin can be adjusted from 50.0 ℃ to 70.0 ℃ by changing the mass ratio of MMA to BA.The epoxy value of the resin was 0.17-0.20 mol/g.The GMA-acrylic resin is suitable for powder coating application.

关 键 词：三元共聚聚丙烯酸酯 甲基丙烯酸缩水甘油酯 沉淀聚合 

分 类 号：TQ637[化学工程—精细化工]