Effect of Internal Donors on the Performance of Ti-Mg Catalysts in Propylene Polymerization: Donor Introduction During or After MgCl2 Formation Научная публикация
| Журнал |
Applied Catalysis A: General
ISSN: 0926-860X , E-ISSN: 1873-3875 |
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| Вых. Данные | Год: 2019, Том: 577, Страницы: 69-75 Страниц : 7 DOI: 10.1016/j.apcata.2019.03.010 | ||
| Ключевые слова | Ziegler-Natta catalysts; Electron donor; Internal donor substitution; Polymer molecular properties | ||
| Авторы |
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| Организации |
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Информация о финансировании (1)
| 1 | Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) | ГЗ-2017-2020 |
Реферат:
Propylene polymerization catalysts with different internal donors (ID) are synthesized by two methods: (1) a standard method with ID introduction during formation of MgCl2 by reacting Mg(OEt)2 with TiCl4, and (2) the introduction of ID on MgCl2 already formed in the presence of butyl acetate (the substitution method). 1,3-diether, dibutyl phthalate (DBP) and pentane-2,4-diol-dibenzoate (PDDB) are used as ID. Catalysts prepared with the same ID by both methods slightly differ in their composition, activity and stereospecificity (the content of xylene soluble polypropylene (PP) fraction). But the catalyst active sites produce PP, whose properties (melt flow index, MFI, and molecular-weight distribution as Mw/Mn) depend on ID in the same manner for both methods of catalyst synthesis. Hence, the effect of ID on the catalyst active sites is not related with the effect of ID on the formation of MgCl2 crystallites with different cuts.
Библиографическая ссылка:
Bukatov G.D.
, Maslov D.K.
, Sergeev S.A.
, Matsko M.A.
Effect of Internal Donors on the Performance of Ti-Mg Catalysts in Propylene Polymerization: Donor Introduction During or After MgCl2 Formation
Applied Catalysis A: General. 2019. V.577. P.69-75. DOI: 10.1016/j.apcata.2019.03.010 WOS Scopus РИНЦ РИНЦ CAPlusCA OpenAlex
Effect of Internal Donors on the Performance of Ti-Mg Catalysts in Propylene Polymerization: Donor Introduction During or After MgCl2 Formation
Applied Catalysis A: General. 2019. V.577. P.69-75. DOI: 10.1016/j.apcata.2019.03.010 WOS Scopus РИНЦ РИНЦ CAPlusCA OpenAlex
Даты:
| Поступила в редакцию: | 10 окт. 2018 г. |
| Принята к публикации: | 18 мар. 2019 г. |
| Опубликована online: | 19 мар. 2019 г. |
| Опубликована в печати: | 1 мая 2019 г. |
Идентификаторы БД:
| Web of science: | WOS:000466622900009 |
| Scopus: | 2-s2.0-85063427778 |
| РИНЦ: | 38690849 | 41789649 |
| Chemical Abstracts: | 2019:619556 |
| Chemical Abstracts (print): | 170:501449 |
| OpenAlex: | W2924107548 |