中文摘要：

以木质素磺酸钠和葡萄糖为原料，采用溶液聚合法制备了一种新型球形木质素基树脂（LBR）。通过正交试验筛选制备LBR的工艺条件，得到制备LBR的优化工艺条件为：木质素磺酸钠用量10g，聚合反应温度190℃，衙绚精用量5％（占木质素磺酸钠的质量分数），体系pH0．5。在此优化条件下，制备的LBR产率达到37．75％、利川红外光谱、热重分析、x衍射分析、扫描电镜及Boehm滴定等分析测试手段对LBR的结构和物性进行了表征和测定，结果表明所制备的LBR是由随机样式极强的无定形高聚物组成，且负载有大量酸性基团（羧基、内酯基和酚羟基）；在低于250℃时，LBR具有良好的热稳定性；LBR呈现球形颗粒状，具有发达的微孔结构，较大的比表面积，仃效粒径范围在1～10μm之间。此外，室温条件下，LBR对cr（VI）的饱和吸附量高达74．29mg／g。

英文摘要：

A new lignin-based resin （LBR） was prepared by condensation polymerization of sodium lignosulfonate with glucose under acidic conditions, and the process conditions for the preparation of LBR were optimized by or- thogonal experiments. The results show that the optimum conditions are ： a mass of sodium lignosulfonate of 10 g, temperature of 190 ℃ , mass percentage of glucose in sodium lignosulfonate of 5% , and pH value of the reaction so- lution of 0.5. And the yield of LBR can reached 37.75% unde the optimum conditions. Fourier transform infrared spectroscopy （FT-IR） , thermogravimetric analysis （TGA）, X-ray diffraction （XRD） , scanning electron microsco- py （SEM） and Boehm titration were used to characterize the structure and properties of LBR. The analysis results reveal that LBR appears to be composed of microcellular-structure spherical particles with grain sizes in the range of 1 to 10 μm, which are composed of amorphous high polymers that have a high density of acidic groups and high thermal stability under 250℃. Moreover, at the room temperature, the maximum adsorption capacity of LBR for Cr （VI） adsorption was 74. 29 mg/g.