| 高磁含量聚合物的合成 |
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| 引用本文： | 王艳君,姚兆玲,袁才登,刘江峰,陈丽,曹同玉.高磁含量聚合物的合成[J].天津大学学报(英文版),2000,6(2):190-193. |
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| 作者姓名： | 王艳君 姚兆玲 袁才登 刘江峰 陈丽 曹同玉 |
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| 作者单位： | 1. 天津大学化工学院,天津,300072
2. 天津大学理学院,天津,300072 |
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| 基金项目： | Supported by Tianjin Natural Science Foundation for2 1 st Centu-ry s Youth |
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| 摘 要： | 提出一种制备高磁含量聚合物的方法 .首先用乙醇对共沉淀法制备的磁流体进行处理 ,然后在处理过的 Fe3O4粒子存在情况下 ,以聚乙二醇为分散剂 ,偶氮二异丁腈为引发剂 ,乙醇为分散介质 ,进行丙烯酰胺的分散聚合 .讨论了分散介质、搅拌强度、磁性粒子性质及用量等因素对聚合反应及聚合物磁含量的影响 .制备出了磁含量高达 3 2 .2 % (质量比 )的聚丙烯酰胺微球
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| 关 键 词： | 分散聚合 磁性聚合物 磁含量 |
PREPARATION OF POLYMER PARTICLES WITH
HIGH CONTENT OF MAGNETIC MATERIAL |
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| WANG Yan-jun,YAO Zhao-ling,YUAN Cai-deng,LIU Jiang-feng,CHEN Li,CAO Tong-yu.PREPARATION OF POLYMER PARTICLES WITH
HIGH CONTENT OF MAGNETIC MATERIAL[J].Transactions of Tianjin University,2000,6(2):190-193. |
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| Authors: | WANG Yan-jun YAO Zhao-ling YUAN Cai-deng LIU Jiang-feng CHEN Li CAO Tong-yu |
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| Abstract: | A method for preparing polymer microspheres with high magnetic content is introduced.First of all,the ferrofluid prepared by co precipitation was treated with ethanol.Then,in the presence of the treated Fe 3O 4 particles,the dispersion polymerization of acrylamide was performed using poly (ethylene glycol) (PEG) as dispersant,AIBN as initiator,and ethanol as dispersing medium.The effects of the dispersing medium,the agitation intensity,the amount and properties of magnetic particles on the polymerization and magnetic content in the polymer microspheres are discussed.Finally,polyacrylamide particles having as high as 32.2% (by weight) magnetic Fe 3O 4 particles were prepared. |
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| Keywords: | dispersion polymerization magnetic polymer magnetic content |
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