DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Y | ko |
dc.contributor.author | Han, Y | ko |
dc.contributor.author | Lee, MH | ko |
dc.contributor.author | Yoon, SW | ko |
dc.contributor.author | Choi, KH | ko |
dc.contributor.author | Song, BG | ko |
dc.contributor.author | Do, Youngkyu | ko |
dc.date.accessioned | 2013-03-04T16:46:12Z | - |
dc.date.available | 2013-03-04T16:46:12Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2001-06 | - |
dc.identifier.citation | MACROMOLECULAR RAPID COMMUNICATIONS, v.22, no.8, pp.573 - 578 | - |
dc.identifier.issn | 1022-1336 | - |
dc.identifier.uri | http://hdl.handle.net/10203/83311 | - |
dc.description.abstract | A new type of half-metallocene catalyst for the polymerization of ethylene and styrene, Cp*M((O)(3)O9Si7(c-C5H9)(7)) (M = Ti (1); Zr (2)), is prepared by the reaction of (HO)(3)O9Si7(c-C5H9)(7) with Cp*MCl3 in the presence of triethylamine. Complex 1 is stable to hear and air, but its heavier congener 2 is slightly air-sensitive. The catalytic systems 1/MMAO and 2/MMAO, in which MMAO is modified methylaluminoxane, show good activities in ethylene polymerization, with that of 2/MMAO greater than that of 1/MMAO. Polyethylenes with bimodal molecular weight distributions were obtained. In addition, the catalytic system 1/MMAO shows fairly good activities for the syndiospecific polymerization of styrene. The molecular weight distribution of PE obtained by the 2/MMAO system as a function of the polymerization temperature. | - |
dc.language | English | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | New half-metallocene catalysts generating polyethylene with bimodal molecular weight distribution and syndiotactic polystyrene | - |
dc.type | Article | - |
dc.identifier.wosid | 000169627200003 | - |
dc.identifier.scopusid | 2-s2.0-0035534161 | - |
dc.type.rims | ART | - |
dc.citation.volume | 22 | - |
dc.citation.issue | 8 | - |
dc.citation.beginningpage | 573 | - |
dc.citation.endingpage | 578 | - |
dc.citation.publicationname | MACROMOLECULAR RAPID COMMUNICATIONS | - |
dc.contributor.localauthor | Do, Youngkyu | - |
dc.contributor.nonIdAuthor | Kim, Y | - |
dc.contributor.nonIdAuthor | Han, Y | - |
dc.contributor.nonIdAuthor | Lee, MH | - |
dc.contributor.nonIdAuthor | Yoon, SW | - |
dc.contributor.nonIdAuthor | Choi, KH | - |
dc.contributor.nonIdAuthor | Song, BG | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | ZIEGLER-NATTA CATALYSTS | - |
dc.subject.keywordPlus | OLEFIN POLYMERIZATION CATALYSTS | - |
dc.subject.keywordPlus | CHEMICAL-COMPOSITION DISTRIBUTIONS | - |
dc.subject.keywordPlus | ELASTOMERIC POLYPROPYLENE | - |
dc.subject.keywordPlus | ETHYLENE POLYMERIZATION | - |
dc.subject.keywordPlus | METAL-CATALYSTS | - |
dc.subject.keywordPlus | SILICA SURFACES | - |
dc.subject.keywordPlus | STEREOSPECIFIC POLYMERIZATION | - |
dc.subject.keywordPlus | PROPYLENE POLYMERIZATION | - |
dc.subject.keywordPlus | STEREOCHEMICAL CONTROL | - |
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