Study of the Bis(imino)pyridyl Complex of Fe(II)/Nafen and Titanium-Magnesium/Nafen Catalysts for Synthesis of Polyethylene/Nafen Composites by in situ Ethylene Polymerization Full article
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Polymer Science Series B
ISSN: 1560-0904 , E-ISSN: 1531-8583 |
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| Output data | Year: 2022, Volume: 64, Number: 6, Pages: 791-799 Pages count : 9 DOI: 10.1134/S1560090422700580 | ||
| Tags | surface hydroxyl-groups; alumina nanofibers; nanocomposites; acid | ||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Ministry of Science and Higher Education of the Russian Federation | 0239-2021-0004 |
Abstract:
Two types of catalysts anchored on the surface of pre-dehydroxylated Nafen alumina nanofibers: (1) bis(imino)pyridyl complex of Fe(II) and (2) titanium-magnesium catalyst obtained by sequential treatment of Nafen with an organomagnesium compound and TiCl4 were synthesized. The formation of the catalytic systems on the Nafen surface was studied by diffuse reflectance infrared Fourier transform spectroscopy. It was shown that organomagnesium compound interacts with terminal OH groups of Nafen to form surface =Al-O–Mg-C4H9 groups. TiCl4 interacts with the indicated groups to produce titanium-magnesium catalyst. The bis(imino)pyridyl complex of Fe(II) is anchored on the Nafen surface due to the interaction with strong Lewis acid sites residing on the NF surface. The synthesized catalysts are highly active toward ethylene polymerization. Polyethylene/Nafen composites with different molecular weights were obtained by varying the polymerization conditions, i.e. reaction temperature and hydrogen introduction. Scanning electron microscopy and transition electron microscopy were used to investigate the polymer formation on the surface of Nafen nanofibers and the morphology of the composite particles obtained in situ using the anchored catalysts of different composition.
Cite:
Panchenko V.N.
, Zakharov V.A.
, Matsko M.A.
Study of the Bis(imino)pyridyl Complex of Fe(II)/Nafen and Titanium-Magnesium/Nafen Catalysts for Synthesis of Polyethylene/Nafen Composites by in situ Ethylene Polymerization
Polymer Science Series B. 2022. V.64. N6. P.791-799. DOI: 10.1134/S1560090422700580 WOS Scopus РИНЦ AN OpenAlex
Study of the Bis(imino)pyridyl Complex of Fe(II)/Nafen and Titanium-Magnesium/Nafen Catalysts for Synthesis of Polyethylene/Nafen Composites by in situ Ethylene Polymerization
Polymer Science Series B. 2022. V.64. N6. P.791-799. DOI: 10.1134/S1560090422700580 WOS Scopus РИНЦ AN OpenAlex
Original:
Панченко В.Н.
, Захаров В.А.
, Мацько М.А.
Изучение бис(имино)пиридильного комплекса Fe(II) и титан-магниевого катализатора, закрепленных на нафене, для синтеза композитов ПЭ‒нафен методом полимеризации in situ
Высокомолекулярные соединения. Серия Б. 2022. Т.64. №6. С.393-401. DOI: 10.31857/S2308113922700243 РИНЦ OpenAlex
Изучение бис(имино)пиридильного комплекса Fe(II) и титан-магниевого катализатора, закрепленных на нафене, для синтеза композитов ПЭ‒нафен методом полимеризации in situ
Высокомолекулярные соединения. Серия Б. 2022. Т.64. №6. С.393-401. DOI: 10.31857/S2308113922700243 РИНЦ OpenAlex
Dates:
| Submitted: | Jun 3, 2022 |
| Accepted: | Nov 8, 2022 |
| Published print: | Dec 1, 2022 |
| Published online: | Feb 28, 2023 |
Identifiers:
| Web of science: | WOS:000940026200002 |
| Scopus: | 2-s2.0-85149111142 |
| Elibrary: | 50357505 |
| Chemical Abstracts: | 2023:429620 |
| OpenAlex: | W4323028132 |