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利用小角X射线散射技术研究了吸附剂的孔结构。选择含6％二乙烯基苯和100％汽油作致孔剂制备的干燥及水和甲苯溶胀的聚合物小球为样品,测定了干态及溶胀态样品的平均孔径及孔径分布。得到了随溶剂吸附量增加平均孔径变化的关系。对吸附和溶胀机理作了初步探讨。
The pore structure of adsorbents was studied by small-angle X-ray scattering. The dry, water-soluble and toluene-swollen polymer spheres containing 6% divinylbenzene and 100% gasoline as the porogen were selected as the samples. The average pore size and pore size distribution of the samples were measured. The relationship between the average pore size and the increase of solvent adsorption capacity was obtained. Adsorption and swelling mechanism made a preliminary study.