茂金属SiO_2的载体化研究(Ⅴ)——茂金属载体催化剂用于乙烯与苯乙烯的共聚  

Study of SiO_2 supporting on metallocene (Ⅴ)--Copolymerization of ethylene and styrene via SiO_2/MAO/Et(Ind)_2ZrCl_2

作　　者：刘立新[1] 赵晓非[1] 甄活良 阎卫东 

机构地区：[1]大庆石油学院化学化工学院,黑龙江大庆163318

出　　处：《大庆石油学院学报》2002年第4期43-45,共3页Journal of Daqing Petroleum Institute

基　　金：国家自然科学基金资助项目 (2 973 414 1)

摘　　要：考察了将茂金属载体催化剂SiO2 MAO Et(Ind) 2 ZrCl2 用于乙烯与苯乙烯的共聚合反应 .在反应时间为 3 0min ,反应温度为 40℃ ,n(Al) n(Zr)为 3 0 0 ,浸渍液茂锆浓度为 2 .17× 10 - 6 mol L的条件下 ,研究了单体量的配比对聚合活性及聚合物物性的影响 .结果表明 ,随单体量配比的增大 ,共聚活性降低 ,共聚物的平均相对分子质量、熔点下降 ,共聚物中苯乙烯链节的物质的量增加 。Ethylene and styrene were copolymerized by using SiO 2/MAO/Et(Ind) 2ZrCl 2 activited with Aluminonane(MAO). When the time of copolymerization was 30 minutes, the temperature of copolymerization was 40 ℃, the radio of Aluminium to Zirconlum was 300, the concentration of supported metallocene was 2.17×10 -6 mol/L, the atactic ES copolymers were produced. The effect of comonomer in the copolymerization was not observed. With the comonomer ratio increased, the catalytic activity, the copolymer properties, such as molecular weight and melting point of the copolymer were decreased.

关 键 词：载体化 研究 茂金属载体催化剂 乙烯 苯乙烯 共聚 催化性能 二氧化硅 

分 类 号：O632.12[理学—高分子化学] O643[理学—化学]