DC Field | Value | Language |
---|---|---|
dc.contributor.author | SONG, WD | ko |
dc.contributor.author | CHU, KJ | ko |
dc.contributor.author | CHANG, HS | ko |
dc.contributor.author | Ihm, Son Ki | ko |
dc.date.accessioned | 2008-03-28T09:04:24Z | - |
dc.date.available | 2008-03-28T09:04:24Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 1993-09 | - |
dc.identifier.citation | JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, v.84, no.1, pp.109 - 116 | - |
dc.identifier.issn | 1381-1169 | - |
dc.identifier.uri | http://hdl.handle.net/10203/3536 | - |
dc.description.abstract | Carbonyl (C-O) bonds of ethyl benzoate (EB) in the support and the catalysts were investigated by infrared (IR) spectroscopy, and a model for the MgCl2-EB-TiCl4 complex was proposed. The characteristic carbonyl peaks at 1690 cm-1 and 1636 cm-1 can be attributed to the carbonyl vibrations in linear EB-MgCl2 and bridged EB-MgCl2 complex, respectively. With small amounts of EB added to MgCl2, both linear and bridged EB/MgCl2 complexes are formed. A further increase in the amount of EB converts all of the complexes to the linear form. The active site for propylene polymerization seems to be the TiCl4-MgCl2 complex, generated by activation with TiCl4 of the bridged EB-MgCl2 complex, some of which is converted to the linear EB-MgCl2 complex. The linear EB-MgCl2 complex tends to inactivate the (EB-TiCl4)2 complex. The catalytic activity for propylene polymerization was consistent with the proposed model and the IR investigation. | - |
dc.language | English | - |
dc.language.iso | en_US | en |
dc.publisher | Elsevier Science Bv | - |
dc.subject | HIGH-MILEAGE CATALYSTS | - |
dc.subject | HIGH-YIELD CATALYSTS | - |
dc.subject | OLEFIN POLYMERIZATION | - |
dc.subject | ETHYL BENZOATE | - |
dc.subject | LEWIS BASE | - |
dc.subject | SYSTEM | - |
dc.subject | POLYPROPYLENE | - |
dc.subject | TICL4 | - |
dc.title | Model for the formation of active titanium complexes on MgCl2-ethyl benzoate-TiCl4catalysts for propylene polymerization | - |
dc.type | Article | - |
dc.identifier.wosid | A1993LY01000014 | - |
dc.identifier.scopusid | 2-s2.0-0027666439 | - |
dc.type.rims | ART | - |
dc.citation.volume | 84 | - |
dc.citation.issue | 1 | - |
dc.citation.beginningpage | 109 | - |
dc.citation.endingpage | 116 | - |
dc.citation.publicationname | JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Ihm, Son Ki | - |
dc.contributor.nonIdAuthor | SONG, WD | - |
dc.contributor.nonIdAuthor | CHU, KJ | - |
dc.contributor.nonIdAuthor | CHANG, HS | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | ACTIVE TITANIUM COMPLEXES | - |
dc.subject.keywordAuthor | ETHYL BENZOATE | - |
dc.subject.keywordAuthor | MAGNESIUM | - |
dc.subject.keywordAuthor | POLYMERIZATION | - |
dc.subject.keywordAuthor | PROPYLENE | - |
dc.subject.keywordAuthor | TITANIUM | - |
dc.subject.keywordPlus | HIGH-MILEAGE CATALYSTS | - |
dc.subject.keywordPlus | HIGH-YIELD CATALYSTS | - |
dc.subject.keywordPlus | OLEFIN POLYMERIZATION | - |
dc.subject.keywordPlus | ETHYL BENZOATE | - |
dc.subject.keywordPlus | LEWIS BASE | - |
dc.subject.keywordPlus | SYSTEM | - |
dc.subject.keywordPlus | POLYPROPYLENE | - |
dc.subject.keywordPlus | TICL4 | - |
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