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Ethylene Polymerization over Supported Titanium-Magnesium Catalysts: Heterogeneity of Active Centers and Effect of Catalyst Composition on the Molecular Mass Distribution of Polymer Full article

Conference 5th International Workshop on Heterogeneous Ziegler‐Natta Catalysts
18-21 Mar 2007 , Ishikawa
Journal Macromolecular Symposia
ISSN: 1022-1360 , E-ISSN: 1521-3900
Output data Year: 2007, Volume: 260, Number: Heterogeneous Ziegler-Natta Catalysts, Pages: 184-188 Pages count : 5 DOI: 10.1002/masy.200751427
Tags Fractionation of polymers, Molecular weight distribution/molar mass distribution, Polyethylene (PE), Titanium-magnesium catalysts (TMC), Ziegler-natta polymerization
Authors Zakharov Vladimir 1 , Matsko Mikhail 1 , Echevskaya Ludmila 1 , Mikenas Tatiana 1
Affiliations
1 Boreskov Institute of Catalysis SB RAS, Prospect Ak. Lavrentieva 5, Novosibirsk, 630090, Russia

Abstract: New experimental approach was used for analysis of molecular weight distribution (MWD) of polymers produced over titanium-magnesium catalysts (TMC). Polymers were fractionated on to fractions with narrow MWD (polydispersity (PD) values Mw/Mn ≤ 2). Then some of these fractions were combined to get the minimal quantity of fractions with PD values close to 2 (Flory components). It was found that three fractions corresponding to three groups of active centers are sufficient for proper fitting experimental MWD curve for PE obtained over TMC with different Ti content and with different hydrogen concentration in polymerization.
Cite: Zakharov V. , Matsko M. , Echevskaya L. , Mikenas T.
Ethylene Polymerization over Supported Titanium-Magnesium Catalysts: Heterogeneity of Active Centers and Effect of Catalyst Composition on the Molecular Mass Distribution of Polymer
Macromolecular Symposia. 2007. V.260. NHeterogeneous Ziegler-Natta Catalysts. P.184-188. DOI: 10.1002/masy.200751427 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
Published print: Dec 1, 2007
Published online: Jan 7, 2008
Identifiers:
Web of science: WOS:000252873800027
Scopus: 2-s2.0-38849124260
Elibrary: 13540812
Chemical Abstracts: 2008:193315
Chemical Abstracts (print): 148:380004
OpenAlex: W2117386574
Citing:
DB Citing
Web of science 9
Scopus 11
Elibrary 12
OpenAlex 9
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