文献类型：期刊文献

英文题名：Ethylene/1-Hexene Copolymerization with A Novel SiO2-Supported Inorganic and Organic Hybrid Chromium-based Catalyst

作者：Zhang, Shiliang[1];Cheng, Ruihua[1];Dong, Qi[1];He, Xuelian[1];Wang, Quntao[2];Tang, Yan[2];Yu, Yongling[2];Xie, Kan[2];Da, Jianwen[2];Terano, Minoru[3];Liu, Boping[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]Qilu Branch Co, Res Inst, SINOPEC, Zibo 255400, Shandong, Peoples R China;[3]Japan Adv Inst Sci & Technol, Sch Mat Sci, Nomi, Ishikawa 9231292, Japan

年份：2013

卷号：7

期号：6

起止页码：254

外文期刊名：MACROMOLECULAR REACTION ENGINEERING

收录：;EI(收录号：20132716463652);WOS:【SCI-EXPANDED(收录号:WOS:000320556700002)】；

基金：The authors thank the financial support of the National Natural Science Foundation of China (21274040), the Key Projects in the National Science & Technology Pillar Program during the 11th Five-Year Plan Period (2007BAE50B04) and Qilu Branch Co., SINOPEC. Shanghai Pujiang Talent Plan Project (08PJ14032) and Program of Introducing Talents of Discipline to Universities (B08021) are also thanked for financial support. This work is also financially supported by Fundamental Research Funds for the Central Universities and the Shanghai Science and Technology Commission (Key Project for Basic Research 10JC1403700).

语种：英文

外文关键词：ethylene/1-hexene copolymerization; inorganic and organic hybrid chromium-based catalyst; kinetics (polym); separation of polymer; short chain branches distribution

摘要：In this work, ethylene/1-hexene copolymerization with a novel SiO2-supported inorganic and organic hybrid chromium-based catalyst was investigated. This catalyst was prepared using the residual surface hydroxyl groups in Phillips catalyst to support bis(triphenylsilyl) chromate (BC) in order to get the merits from two important chromium-based catalysts namely inorganic Phillips and organic S-2 catalysts. The influences of addition amount of 1-hexene and BC were systematically investigated. With increasing 1-hexene from 0 to 7 vol%, the activity of HCat-2 catalyst showed a decreasing tendency. Its copolymer also showed the better short chain branches distribution through the temperature rising elution fractionation cross successive self-nucleation and annealing characterization.