Ethylene Polymerization with Supported Vanadium-Magnesium Catalyst: Number of Active Centers and Propagation Rate Constant Научная публикация
| Журнал |
Macromolecular Chemistry and Physics
ISSN: 1022-1352 , E-ISSN: 1521-3935 |
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| Вых. Данные | Год: 2001, Том: 202, Номер: 8, Страницы: 1435-1439 Страниц : 5 DOI: 10.1002/1521-3935(20010501)202:8<1435::AID-MACP1435>3.0.CO;2-# | ||
| Ключевые слова | carbon monoxide; ethylene; hydrogen; magnesium; vanadium | ||
| Авторы |
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| Организации |
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Реферат:
The data on the number of active centers in the ethylene polymerization with highly active supported
vanadium-magnesium catalyst (130 kg-PE/g-V N h N bar) were obtained by using 14CO as a radioactive inhibitor.
The number of active centers was found to attain 0.06 mol/mol-V and the propagation rate constant equaled
2.2 N 104 L/mol N s (808C). The effect of reversible deactivation of the catalyst in ethylene polymerization in the
presence of hydrogen was studied. It was found that a part of the active centers containing vanadium-polymer bonds
transforms to a temporary inactive (dormant) state during the polymerization in presence of hydrogen that may
explain the catalyst deactivation. As hydrogen is removed from the reaction medium, these centers transform to the
active state again
Библиографическая ссылка:
Matsko M.A.
, Bukatov G.D.
, Mikenas T.B.
, Zakharov V.A.
Ethylene Polymerization with Supported Vanadium-Magnesium Catalyst: Number of Active Centers and Propagation Rate Constant
Macromolecular Chemistry and Physics. 2001. V.202. N8. P.1435-1439. DOI: 10.1002/1521-3935(20010501)202:8<1435::AID-MACP1435>3.0.CO;2-# WOS Scopus РИНЦ OpenAlex
Ethylene Polymerization with Supported Vanadium-Magnesium Catalyst: Number of Active Centers and Propagation Rate Constant
Macromolecular Chemistry and Physics. 2001. V.202. N8. P.1435-1439. DOI: 10.1002/1521-3935(20010501)202:8<1435::AID-MACP1435>3.0.CO;2-# WOS Scopus РИНЦ OpenAlex
Даты:
| Поступила в редакцию: | 16 авг. 2000 г. |
| Опубликована в печати: | 15 июн. 2001 г. |
Идентификаторы БД:
| ≡ Web of science: | WOS:000169660200022 |
| ≡ Scopus: | 2-s2.0-0035877937 |
| ≡ РИНЦ: | 13374784 |
| ≡ OpenAlex: | W2161173845 |