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用萃取剂N_(235)浸渍大孔苯乙烯—二乙烯苯(MSD)树脂制得了溶剂浸渍树脂。用压汞仪测定了溶剂浸渍树脂的孔体积、孔表面积和孔径等,用扫描电镜观察了溶剂浸渍树脂的形貌。MSD树脂对N_(235)吸附率随该树脂的交联度和混合致孔剂用量增加而增加。由于N_(235)分布于MSD树脂孔表面,浸渍树脂的孔体积、孔表面和孔径比MSD树脂显著下降。在孔径1～100nm孔表面吸附N_(235)量最大。低交联度MSD树脂对N_(235)吸附量低,且分布不均匀。
Solvent impregnated resin was prepared by impregnating macroporous styrene - divinylbenzene (MSD) resin with extractant N_ (235). The pore volume, pore surface area and pore size of solvent-impregnated resin were measured by mercury porosimetry. The morphology of solvent-impregnated resin was observed by scanning electron microscopy. The adsorption of N_ (235) on MSD resin increases with the resin ’s degree of crosslinking and the amount of mixed porogen. Due to the distribution of N_ (235) on the surface of MSD resin, the pore volume of resin impregnated, pore surface and pore size decreased significantly compared to MSD resin. In the pore diameter of 1 ~ 100nm pore surface adsorption N_ (235) the largest amount. MSD resin with low crosslinking degree has low adsorption amount of N 235 and uneven distribution.