【摘要】 以种子诱导模版法合成制备了球形度高、粒径分布均一硅胶微球。硅胶微球具有相近的比表面积(280～300?m²·g^-1)，粒径大小在5～25μm之间且可精确分级调控。以硅胶为载体制备得到负载型茂金属催化剂。结果表明，作为载体的硅胶粒径越小，所得催化剂的活性越高，而粒径对聚合物的分子量分布影响较小。更多还原

【Abstract】 Silica gel microspheres with high sphericity and uniform particle size distribution were synthesized by seed-induced template method.Silica gel microspheres have similar specific surface area (280～300 m²·g^-1),particle size between 5～25 μm,and can be accurately graded and regulated.The results showed that the smaller the particle size of silica gel as a carrier,the higher the catalyst activity,and the particle size had little effect on the molecular weight distribution of the polymer.更多还原