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材料研究学报  2011, Vol. 25 Issue (4): 417-421    
  研究论文 本期目录 | 过刊浏览 |
用半连续法制备高交联度三维有序聚苯乙烯微球
刘艳辉,  邵忠财,  刘新院, 高景龙
沈阳理工大学材料科学与工程学院 沈阳 110159
Synthesis of Highly Crosslinked Three–dimensionally Ordered Polystyrene Microspheres by Semi–continuous Method
LIU Yanhui, SHAO Zhongcai, LIU Xinyuan, GAO Jinglong
College of Material Science and Engineering, Shenyang Ligong University, Shenyang 110159
引用本文:

刘艳辉 邵忠财 刘新院 高景龙. 用半连续法制备高交联度三维有序聚苯乙烯微球[J]. 材料研究学报, 2011, 25(4): 417-421.
, . Synthesis of Highly Crosslinked Three–dimensionally Ordered Polystyrene Microspheres by Semi–continuous Method[J]. Chin J Mater Res, 2011, 25(4): 417-421.

全文: PDF(926 KB)  
摘要: 建立了一种合成高交联度单分散聚苯乙烯的方法--半连续无皂乳液聚合法, 用此法合成的聚苯乙烯交联度可达到50%以上。调整交联剂的加入时间可有效地控制聚苯乙烯粒子的粒度, 制备出高质量高交联度三维有序亚微米级聚苯乙烯微球。揭示了半连续无皂乳液聚合法中合成聚苯乙烯的聚合机理。聚合反应动力学表明:聚合反应开始后加入交联剂, 可以使聚苯乙烯单体在低转化率情况下快速进入第二成核期。交联剂的加入时间和含量影响聚苯乙烯粒子的粒度、单分散性、球形度和溶解性能。
关键词 材料合成与加工工艺半连续法高交联度单分散聚苯乙烯    
Abstract:Semi–continuous method, by which monodisperse highly crosslinked polystyrene can be synthetized, is presented in this paper. The crosslingking degree of polystyrene synthetized by this method is more than 50%. The average size of the polystyrene can be controlled by adjusting the time of adding cross–linking agent. High–quality and highly crosslinged three–dimensionally ordered polystyrene microspheres can be synthetized. Mechanism of semi–continuous soap–free emusion polymerization method is investigated. The results show that the secondary nucleation is emerged under low conversion of monomer by delayed divinyl benzene entry. The content of cross–linking agent and the time of adding cross–linking agent affect the average size of the polystyrene, monodispertion properties, shape and solubility.
Key wordssynthesizing and processing technics    semi–continuous method    highly crosslinked    monodisperse polystyrene
收稿日期: 2010-04-15     
ZTFLH: 

TB324

 
基金资助:

教育部辽宁省自然科学基金2009A621资助项目。

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