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| 高单体浓度非水分散聚合制备大粒径聚苯乙烯微球 | |
| 引用本文： | 陈冲,苏向东,韩峰,邓兴,何力,古文全.高单体浓度非水分散聚合制备大粒径聚苯乙烯微球[J].贵州科学,2012,30(1):42-45. |
| 作者姓名： | 陈冲 苏向东 韩峰 邓兴 何力 古文全 |
| 作者单位： | 1. 贵州大学材料科学与冶金工程学院,贵阳,550003 2. 贵州科学院,贵阳,550001 3. 贵州省土壤肥料工作总站,贵阳,550001 4. 贵州省冶金化工研究所,贵阳,550001 |
| 基金项目： | 基金项目：贵州省工业攻关项目：黔科合GY字（2007）3006. |
| 摘 要： | 本文在高单体浓度下,以苯乙烯(St)为单体,偶氮二异丁腈(AIBN)为引发剂,二乙烯苯(DVB)为交联剂,聚乙烯吡咯烷酮(PVP)为稳定剂,无水乙醇(EtOH)为分散介质,采用分散聚合法制备了粒径达6.03μm,分散系数为0.042的聚苯乙烯微球。研究了高单体浓度非水体系中聚苯乙烯微球的生长动力学过程、粒径大小及粒度分布的影响因素,试验结果表明,二乙烯苯的加入可将聚苯乙烯微球的玻璃化转变温度提高。 |
| 关 键 词： | 单体浓度 分散聚合 聚苯乙烯 微球 大粒径 |
Synthesis of Large-sized Polystyrene Microspheres by Dispersion Polymerization in High Monomer Concentration and Non-aqueous |
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| CHEN Chong,SU Xiang-dong,HAN Feng,DENG Xing,HE Li,Gu Wen-quan.Synthesis of Large-sized Polystyrene Microspheres by Dispersion Polymerization in High Monomer Concentration and Non-aqueous[J].Guizhou Science,2012,30(1):42-45. | |
| Authors: | CHEN Chong SU Xiang-dong HAN Feng DENG Xing HE Li Gu Wen-quan |
| Institution: | 1 College of Materials and Metallurgy, Guizhou University, Guiyang , Guizhou 550003, China ; 2 Cuizhou Academy of Sciences, Guiyang, Guizhou 550001, China ; Guizhou Station of Soil and Fertilizer, Guiyang, Guizhou 550001, China ; 4 Guizhou Metallurgical and Chemical Engineering Institue , Guiyang , Guizhou 550001, China) |
| Abstract: | The polystyrene microspheres with diameter of 6.03 μm and dispersion coefficient of 0. 042 were syn- thesized by dispersion polymerization in high monomer concentration, using styrene as monomer, AIBN as initiator, DVB as crosslink, PVP as stabilizer and ethanol as solvent. The growth process, microspheres diameter and size distribution of polystyrene microspheres in high monomer concentration and non-aqueous environment were investi- gated. It was proved that the addition of DVB could improve the Tg of the polystyrene microsphere. |
| Keywords: | monomer concentration dispersion polymerization polystyrene microspheres large-sized |
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