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Propylene Polymerization over Supported Ziegler-Natta Catalysts: Effect of Internal and External Donors on Distribution of Active Sites According to Stereospecificity Full article

Journal Journal of Applied Polymer Science
ISSN: 0021-8995 , E-ISSN: 1097-4628
Output data Year: 2018, Volume: 135, Number: 23, Article number : 46291, Pages count : 10 DOI: 10.1002/app.46291
Tags Catalysts, Polyolefins, Polypropylene, Separation techniques, Stereochemistry and tacticity, TREF-temperature rising elution fractions
Authors Nikolaeva Marina 1 , Matsko Mikhail 1 , Zakharov Vladimir 1,2
Affiliations
1 Boreskov Institute of Catalysis, Prospect Lavrentieva, 5, Novosibirsk, Russia
2 Novosibirsk State University, Pirogova Str.2, Novosibirsk, Russia

Funding (2)

1 Federal Agency for Scientific Organizations 0303-2016-0009
2 The Ministry of Education and Science of the Russian Federation

Abstract: Data on the content of fractions with different microtacticities for polypropylene (PP) samples produced over three catalysts [the “donor-free” titanium–magnesium catalyst and catalysts with dibutyl phthalate and 1,3-diether(fluorene) used as internal donors] upon polymerization in the absence/presence of an external donor (ED) have been obtained by preparative temperature rising elution fractionation method. The effect of internal and EDs on the distribution of PP fractions with different microtacticity is discussed. Data on molecular weight and thermophysical characteristics were obtained for individual fractions with different microtacticities. Correlations were found between microtacticity, molecular weight, and the melting points of these fractions.
Cite: Nikolaeva M. , Matsko M. , Zakharov V.
Propylene Polymerization over Supported Ziegler-Natta Catalysts: Effect of Internal and External Donors on Distribution of Active Sites According to Stereospecificity
Journal of Applied Polymer Science. 2018. V.135. N23. 46291 :1-10. DOI: 10.1002/app.46291 WOS Scopus РИНЦ AN OpenAlex
Dates:
Submitted: Sep 12, 2017
Accepted: Jan 20, 2018
Published online: Feb 20, 2018
Published print: Jun 15, 2018
Identifiers:
Web of science: WOS:000427252800001
Scopus: 2-s2.0-85042193666
Elibrary: 35528969
Chemical Abstracts: 2018:302066
OpenAlex: W2790988330
Citing:
DB Citing
Web of science 13
Scopus 13
Elibrary 11
OpenAlex 12
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