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 |
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| 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 |
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| Affiliations |
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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 OpenAlex AN
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 OpenAlex AN
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 |
| ≡ OpenAlex: | W2790988330 |
| ≡ Chemical Abstracts: | 2018:302066 |