| 无皂乳液聚合制备阳离子功能性微球研究 |
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| 引用本文： | 张金枝,程时远,黄世强,陈正国,彭顺金.无皂乳液聚合制备阳离子功能性微球研究[J].胶体与聚合物,2000,18(3). |
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| 作者姓名： | 张金枝 程时远 黄世强 陈正国 彭顺金 |
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| 作者单位： | 湖北大学化学与材料科学学院!武汉430062 |
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| 摘 要： | 苯乙烯 (St) /丙烯酸丁酯 (BA)体系在无乳化剂的条件下分别与少量的自制的 N,N-二甲基 ,N-丁基 ,N-甲基丙烯酰氧乙基溴化铵 (DBMEA)、N,N-二甲基 ,N-丁基 ,N-(3-甲基丙烯酰胺基 )丙基溴化铵 (DBMPA)进行共聚 ,通过离子交换—电导滴定确定了两体系微球表面基团及粒子表面电荷密度 ,认为微球大小及表面电荷密度主要由引发剂浓度、共聚单体浓度、离子强度、St/BA主单体比及单体加料方式决定。粒子的形态规则 ,大小均一、表面干净。
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| 关 键 词： | 功能性微球 粒子表面性质 粒子形态 |
Synthesis of Cationic Functional Microspher by Soap-free Emulsion Polymerization |
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| Zhang Jinzhi,Cheng Shiyuan,Huang Shixiang Chen Zhenguo Peng shunjin.Synthesis of Cationic Functional Microspher by Soap-free Emulsion Polymerization[J].Chinese Journal of Colloid and Polymer,2000,18(3). |
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| Authors: | Zhang Jinzhi Cheng Shiyuan Huang Shixiang Chen Zhenguo Peng shunjin |
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| Abstract: | Styrene and butyl acrylate copolymerized with small amounts of cationic comonomer N,N-dimethyl,N-butyl,N-methacrylolxylethyl ammonium bromide (DBMEA) and N-dimethyl, N-butyl, N-(3-methacrylamidion) propyl ammonium bromide (DBMPA) through Soap-free emulsion polymerization respectively. The cationic comonomers were prepared by ourselves.The microsphere surface functional groups and surface charge density were determined by ionic exchange -conductometric titration. The results indicate:The size and surface properties of microsphere depended on initiator concentration, comonomer concentration, ionic strength, the St/BA monomer mass ratio. The morphology of latex particles was uniformity and the microsphere surface was clean. |
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| Keywords: | functional comonomer particle surface properties particle morphology |
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