| 超声波场作用下苯乙烯的分散聚合反应机理研究 |
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| 引用本文： | 张凯,范敬辉,马艳,吴菊英.超声波场作用下苯乙烯的分散聚合反应机理研究[J].化学推进剂与高分子材料,2007,5(3):49-51. |
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| 作者姓名： | 张凯 范敬辉 马艳 吴菊英 |
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| 作者单位： | 中国工程物理研究院总体工程研究所,四川,绵阳,621900;中国工程物理研究院总体工程研究所,四川,绵阳,621900;中国工程物理研究院总体工程研究所,四川,绵阳,621900;中国工程物理研究院总体工程研究所,四川,绵阳,621900 |
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| 基金项目： | 中国工程物理研究院科技基金 |
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| 摘 要： | 通过实验研究和理论分析,提出了超声波场作用下分散聚合的反应是分区域分阶段逐步进行的反应机理。在分散聚合反应过程中,成核机理为接枝共聚物聚结机理,稳定机理以接枝稳定机理为主,分散剂吸附为辅。聚合过程可分为5个阶段:自由基生成阶段、强化扩散阶段、均相溶液聚合阶段、聚结成核阶段和粒子增长阶段。
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| 关 键 词： | 超声波场 苯乙烯 分散聚合 反应机理 |
| 文章编号： | 1672-2191（2007）03-0049-03 |
| 修稿时间： | 2007-03-16 |
Reaction Mechanism of Dispersion Polymerization of Styrene Assist-Initiated Through Ultrasonic Irradiation |
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| ZHANG Kai,FAN Jing-hui,MA Yan,WU Ju-ying.Reaction Mechanism of Dispersion Polymerization of Styrene Assist-Initiated Through Ultrasonic Irradiation[J].Chemical Propellants & Polymeric Materials,2007,5(3):49-51. |
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| Authors: | ZHANG Kai FAN Jing-hui MA Yan WU Ju-ying |
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| Affiliation: | Institute of System Engineering, China Academy of Engineering Physics, Mianyang 621900, China |
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| Abstract: | The reaction mechanism of dispersion polymerization of styrene assist-initiated through ultrasonic irradiation is put forward through test and theoretical analysis,which is stepwise carried out in different regions.During the dispersion polymerization process,the nucleation mechanism is coalescence mechanism of grafting-copolymer and the stabilization mechanism is synergistic action between graft polymer stability(main) and dispersant adsorbility(assistant).The polymerization process can be divided into five stages as follows: free radical formation stage,strengthening diffusion stage,homogeneous phase solution polymerization stage,coalescence nucleation stage and particle growth stage. |
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| Keywords: | ultrasonic irradiation styrene dispersion polymerization reaction mechanism |
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