| 丙烯酸甲酯对羧基氯丁胶乳聚合体系的影响 |
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| 引用本文： | 李德永,石艳,付志峰. 丙烯酸甲酯对羧基氯丁胶乳聚合体系的影响[J]. 北京化工大学学报(自然科学版), 2007, 34(2): 203-206 |
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| 作者姓名： | 李德永 石艳 付志峰 |
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| 作者单位： | 北京化工大学化工资源有效利用国家重点实验室,北京,100029;北京化工大学化工资源有效利用国家重点实验室,北京,100029;北京化工大学化工资源有效利用国家重点实验室,北京,100029 |
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| 摘 要： | 研究了丙烯酸甲酯（MA）对聚乙烯醇为乳化剂的氯丁二烯和甲基丙烯酸乳液共聚合的影响。结果表明，共聚单体MA的加入量为30%时，氯丁胶乳制备过程中体系的黏度从约1.36Pa·s降低到0.10Pa·s左右；乳胶粒的平均粒径随着MA含量的增加逐渐减小。根据聚合过程中体系黏度和粒径变化规律提出在MA存在下，分散聚合机理占主导地位。
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| 关 键 词： | 丙烯酸甲酯 氯丁二烯 乳液聚合 乳液粒径及其分布 乳液稳定性 |
| 修稿时间： | 2006-05-10 |
Effect of added methyl acrylate on the polymerization of carboxylic chloroprene emulsion |
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| LI DeYong,SHI Yan,FU ZhiFeng. Effect of added methyl acrylate on the polymerization of carboxylic chloroprene emulsion[J]. Journal of Beijing University of Chemical Technology, 2007, 34(2): 203-206 |
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| Authors: | LI DeYong SHI Yan FU ZhiFeng |
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| Affiliation: | State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | The influence of added methyl acrylate (MA) on the emulsion copolymerization of methacrylic acid (MAA) and chloroprene in the presence of polyvinyl alcohol as a protective colloid was investigated. It was found that the latex viscosity decreased significantly from 1.36Pa·s to 0.10Pa·s after addition of 30% MA and the particle size of the latex decreased with increasing MA content. A dispersion polymerization mechanism has been proposed in order to account for the effects of added MA on the latex viscosity and particle size. |
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| Keywords: | methyl acrylate chloroprene emulsion polymerization particle size distribution emulsion stability |
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