| 紫外光引发甲基丙烯酸甲酯乳液聚合 |
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| 引用本文： | 张敏娟,张爱珍,张力.紫外光引发甲基丙烯酸甲酯乳液聚合[J].化学研究,2013(1):79-81. |
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| 作者姓名： | 张敏娟 张爱珍 张力 |
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| 作者单位： | 郑州工业贸易学校基础部;广东工业大学材料与能源学院 |
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| 摘 要： | 以60W高压汞灯为光源,以偶氮二异丁氰(AIBN)为主要光引发剂,以甲基丙烯酸甲酯(MMA)为单体进行乳液聚合,考察了光照时间、单体浓度、光引发剂浓度等因素对单体转化率的影响;采用透射电镜观察了乳胶粒的形态,并测定了其尺寸.结果表明,转化率随光照时间和单体浓度的增加而上升;当光引发剂质量分数为3%时单体转化率最高.
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| 关 键 词： | 紫外光引发 甲基丙烯酸甲酯 乳液聚合 转化率 |
Emulsion polymerization of methylmethacrylate initiated by ultraviolet irradiation |
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| ZHANG Min-juan,ZHANG Ai-zhen,ZHANG Li.Emulsion polymerization of methylmethacrylate initiated by ultraviolet irradiation[J].Chemical Research,2013(1):79-81. |
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| Authors: | ZHANG Min-juan ZHANG Ai-zhen ZHANG Li |
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| Institution: | 1.Fundamental Department,Zhengzhou Trade and Industry Schools,Zhengzhou 450007,Henan,China; 2.School of Material and Energy Source,Guangdong University of Technology,Guangzhou 510006,Guangdong,China) |
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| Abstract: | A 60 W high pressure mercury lamp was used as the light source to initiate the emul- sion polymerization of methylmethacrylate （MMA） monomer in the presence of azodiisobuty- ronitrile as the major photoinitiator. The effects of irradiation time, concentration of mono- mer, and concentration of photointiator on the conversion rate of MMA monomer were investi- gated. A transmission electron microscope was performed to observe the morphology of as-ob- tained emulsion and determine the size of the emulsion particles as well. Results show that the conversion rate rises with the increase of irradiation time and monomer concentration as well. The highest conversion rate is obtained at a photoinitiator concentration of 3% （mass frac- tion）, and the conversion rates tends to decline with further increase of the photoinitiator con- centration above 3 %. |
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| Keywords: | ultraviolet initiation methylmethacrylate emulsion polymerization conversion rate |
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