Copolymerization of ethylene and 1-decene by metallocenes: Direct comparison of Me2C(Cp)(Flu)ZrMe2 with Et(Cp)(Flu)ZrMe2

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dc.contributor.authorKim, Iko
dc.contributor.authorKim, KTko
dc.contributor.authorLee, MHko
dc.contributor.authorDo, Youngkyuko
dc.contributor.authorChung, Hko
dc.date.accessioned2013-03-04T16:53:58Z-
dc.date.available2013-03-04T16:53:58Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued2001-06-
dc.identifier.citationPOLYMER ENGINEERING AND SCIENCE, v.41, no.6, pp.899 - 907-
dc.identifier.issn0032-3888-
dc.identifier.urihttp://hdl.handle.net/10203/83330-
dc.description.abstractCopolymerizations of ethylene with 1-decene have been carried out by using two syndiospecific metallocenes synthesized by modifying the bridge: highly syndiospecific isopropylidene(1-eta (5)-cyclopentadienyl)(1-eta (5)-fluorenyl)-dimethylzirconium (Me2C(CP)(Flu)ZrMe2, 1) and less syndiospecific (1-fluorenyl-2-cyclopentadienylethane) -dimethylzirconium (Et(Cp)(Flu)ZrMe2, 2), in the presence of [Ph3C][B(C6F5)(4)] as a cocatalyst. The ethano bridged 2 compound of smaller dihedral angle showed much higher activity than I compound. The catalytic activities of the two compounds were enhanced about twice when a suitable amount of 1-decene comonomer is present in the feed. The compound IL showed better comonomer reactivity than 2. The properties (T-m, density, and crystallinity) of copolymers seem not to be affected by the type of bridge of the metallocenes, and mainly depend on 1-decene content in the copolymer.-
dc.languageEnglish-
dc.publisherSOC PLASTICS ENG INC-
dc.subjectRAMAN-SPECTROSCOPY-
dc.subjectCATALYST SYSTEM-
dc.subjectALPHA-OLEFINS-
dc.subjectPOLYMERIZATION-
dc.subjectPOLYETHYLENE-
dc.subjectPROPYLENE-
dc.subjectCOMONOMER-
dc.titleCopolymerization of ethylene and 1-decene by metallocenes: Direct comparison of Me2C(Cp)(Flu)ZrMe2 with Et(Cp)(Flu)ZrMe2-
dc.typeArticle-
dc.identifier.wosid000170097200001-
dc.identifier.scopusid2-s2.0-0035358651-
dc.type.rimsART-
dc.citation.volume41-
dc.citation.issue6-
dc.citation.beginningpage899-
dc.citation.endingpage907-
dc.citation.publicationnamePOLYMER ENGINEERING AND SCIENCE-
dc.contributor.localauthorDo, Youngkyu-
dc.contributor.nonIdAuthorKim, I-
dc.contributor.nonIdAuthorKim, KT-
dc.contributor.nonIdAuthorLee, MH-
dc.contributor.nonIdAuthorChung, H-
dc.type.journalArticleArticle-
dc.subject.keywordPlusRAMAN-SPECTROSCOPY-
dc.subject.keywordPlusCATALYST SYSTEM-
dc.subject.keywordPlusALPHA-OLEFINS-
dc.subject.keywordPlusPOLYMERIZATION-
dc.subject.keywordPlusPOLYETHYLENE-
dc.subject.keywordPlusPROPYLENE-
dc.subject.keywordPlusCOMONOMER-
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