期刊论文

Xu, W.-J.(weijianxu_59@163.com)

中文

湖南大学学报(自然科学版)

1674-2974

2004

31

4

1-5

10.3321/j.issn:1000-2472.2004.04.001

教育部高校骨干教师基金（2000K52141）资助项目；

本校为其他机构

以L-苯丙氨酸为模板分子,α-甲基丙烯酸和4-乙烯基吡啶为功能单体,二甲基丙烯酸乙二醇酯和1,4-二乙烯基苯为交联剂,二甲亚砜为溶剂,分别采用本体聚合、乳液聚合和牺牲硅胶法制备分子印迹聚合物.利用氮气吸附实验测定聚合物颗粒的比表面积和孔容,激光粒度分布仪测定颗粒尺寸分布范围和分布曲线.实验表明:牺牲硅胶法制备的分子印迹聚合物具有最大比表面积As=279 m2/g,颗粒分布与薄层层析硅胶-H相近,对L-苯丙氨酸最大饱和吸附量为33.89 mg/g,静态分离因子α=1.68,动态分离因子α'=1.227.

L-Phe molecularly imprinted polymers were prepared in three methods, which are the conventional bulk polymerization, emulsion polymerization and polymerization with silica gel as sacrificial materials. In the polymerization procedure, L-Phe was selected as the template molecule, α-methacrylic acid and 4-vinyl pyridine as the functional monomers, glycol dimethacrylate and 1,4-divinylbenzene as the crosslinkers, dimethyl sulfoxide as the solvent with proper proportion. The specific surface area and the pore volume of MIPs and the particle size distribution were examined through Brunauer-Em...