文档介绍：第 30 卷第 3 期
精
细
化
工
Vol . 3 0 ,No . 3
2013 年 3 月
FINE CHEMICALS
Mar. 2 0 1 3
催化与分离提纯技术
单分散高分子微球的制备及色谱性能
马言顺,王
子,吴
珊,胡
锐
( 四川师范大学化学与材料科学学院,四川成都 610068)
摘要: 以二乙烯基苯( DVB - 55) 和二乙二醇二甲基丙烯酸酯( DGD) 为共聚单体,采用沉淀聚合法在乙腈溶剂中
一步制得了聚( 二乙烯基苯-co-二乙二醇二甲基丙烯酸酯) 微球[P( DVB-DGD) ]。用 FTIR、SEM 和 BET 等方法
对 P( DVB-DGD) 进行表征,结果表明,两种单体在聚合过程中实现了共聚,数均粒径为 3. 6 μm 的单分散微球表
2
式考察了 P( DVB-DGD) 填充的新型固定相的色谱性能,结果显示,组分获得了尖锐对称的峰形。色谱柱呈现了
较高柱效和良好色谱性能,表明沉淀聚合在 HPLC 固定相方面具有较好应用前景。
关键词: 沉淀聚合法; 微球; 单分散; 固定相; 催化与分离提纯技术
中图分类号: TQ322. 4; O657. 72
文献标识码: A
文章编号: 1003 - 5214( 2013) 03 - 0299 - 04
Preparation and Chromatographic Characterization of
Monodisperse Polymeric Microspheres
MA Yan-shun,WANG Zi,WU Shan,HU Rui
( College of Chemistry and Material Science,Sichuan Normal University,Chengdu 610068,Sichuan,China)
Abstract: Poly ( divinylbenzene-co-diethylene glycol dimethacrylate) [P ( DVB-DGD) ] microspheres
were prepared by precipitation polymerization in acetonitrile solvent with divinylbenzene - 55 and
diethylene glycol dimethacrylate onomers. FTIR,SEM and BET were applied to characterize P
( DVB-DGD) . FTIR shows that the two monomers copolymerized during the precipitation polymerization
process. SEM indicates that no macroporous structure could be observed and the number-average
diameter of the monodisperse microspheres was 3. 6 μm. The surface area and the av