Preparation of functionalized montmorillonites and their application in supported zirconocene catalysts for ethylene polymerization | |
Liu CB ; Tang T ; Zhao ZF ; Huang BT | |
刊名 | journal of polymer science part a-polymer chemistry
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2002 | |
卷号 | 40期号:11页码:1892-1898 |
关键词 | LAYERED SILICATES NANOCOMPOSITES COMPLEXES |
ISSN号 | 0887-624x |
通讯作者 | tang t |
中文摘要 | ethylene polymerization was carried out with zirconocene catalysts supported on montmorillonite (or functionalized montmorillonite). the functionalized montmorillonite was from simple ion exchange of [ch3o2cch2nh3](+) (meglyh(+)) ions with interlamellar cations of layered montmorillonites. the functionalized montmorillonlites [high-purity montmorillonite (mmt)-meglyh(+)] had larger interlayer spacing (12.69 angstrom) than montmorillonites without treatment (9.65 angstrom). the zirconocene catalyst system [cp2zrcl2/methylaluminoxane (mao)/mmt-meglyh(+)] had much higher zr loading and higher activities than those of' other zirconocene catalyst systems (cp2zrcl2/mmt, cp2zrcl2/mmt-meglyh(+), cp2zrcl2/mao/mmt, [cp2zrcl](+)[bf4]/mmt, [cp2zrcl][bf4](-)/mmt-meglyh(+), [cp2zrcl](+)[bf4](-)/mao/mmt-meglyh(+), and [cp2zrcl](+)[bf4](-)/mao/mmt). the polyethylenes with good bulk density were obtained from the catalyst systems, particularly (cp2zrcl2/mao/mmt-meglyh(1)). meglyh(+) and mao seemed to play important roles for preparation of the supported zirconocenes and polymerization of ethylene. the difference in zr loading and catalytic activity among the supported zirconocene catalysts is discussed. |
收录类别 | SCI收录期刊论文 |
语种 | 英语 |
WOS记录号 | WOS:000175550700025 |
公开日期 | 2010-11-03 |
内容类型 | 期刊论文 |
源URL | [http://202.98.16.49/handle/322003/18611] ![]() |
专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
推荐引用方式 GB/T 7714 | Liu CB,Tang T,Zhao ZF,et al. Preparation of functionalized montmorillonites and their application in supported zirconocene catalysts for ethylene polymerization[J]. journal of polymer science part a-polymer chemistry,2002,40(11):1892-1898. |
APA | Liu CB,Tang T,Zhao ZF,&Huang BT.(2002).Preparation of functionalized montmorillonites and their application in supported zirconocene catalysts for ethylene polymerization.journal of polymer science part a-polymer chemistry,40(11),1892-1898. |
MLA | Liu CB,et al."Preparation of functionalized montmorillonites and their application in supported zirconocene catalysts for ethylene polymerization".journal of polymer science part a-polymer chemistry 40.11(2002):1892-1898. |
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