中文摘要：

在不同反应温度下对多孔苯乙烯-二乙烯基苯共聚物微球进行磺化亲水性修饰,采用扫描电镜与氮气吸附法,研究多孔微球的孔结构。结果显示,磺化反应修饰后,微球的孔容与比表面积变小,且随着磺化温度升高,比表面积与孔容递减。交换容量则随着磺化温度升高而递增。用牛血清蛋白作为模型蛋白质,研究了亲水性修饰后的多孔苯乙烯-二乙烯基苯共聚物微球对蛋白质大分子吸附性能的影响。实验结果表明,牛血清蛋白在磺化微球上的吸附主要由孔容与比表面积决定,孔容与比表面积越大,蛋白质吸附量也越大。吸附速率表现为疏水作用快于静电作用。吸附动力学研究表明,Kannan-Sundaram模型可较好地描述牛血清蛋白的吸附动力学行为。

英文摘要：

The sulfonation of porous Poly（Styrene-co-divinylbenzene）（PS/DVB） beads were performed in different reaction temperatures.The structure of pores in PS/DVB micro spheres were characterized by nitrogen adsorption and scanning electron microscopy.It shows that,the specific surface area and total pore volume reduce after sulfonation.The higher the temperature,the smaller the surface area and total pore volume.The exchange capacities increase with increasing reaction temperature.Using bovine serum albumin（BSA） as a model protein,adsorption properties of the protein was studied.The experimental results show that the adsorption capacities of the BSA can be determined by the specific surface area and pore volume.The adsorption capacities of the BSA on sulfonated micro spheres become higher and the adsorption rate become faster with increasing pore volume and specific surface area.The investigation on adsorption kinetics behavior of the BSA shows that the adsorption kinetics of BSA on sulfonated micro spheres can be described by the Kannan-Sundaram model.