Surface Acidic Sites on Supported Titanium-Magnesium Catalyst for Propylene Polymerization: ESR Study via Adsorption of Stable Nitroxyl Radicals Научная публикация
| Журнал |
Macromolecular Chemistry and Physics
ISSN: 1022-1352 , E-ISSN: 1521-3935 |
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| Вых. Данные | Год: 1997, Том: 198, Номер: 9, Страницы: 2867-2873 Страниц : 7 DOI: 10.1002/macp.1997.021980916 | ||
| Ключевые слова | CHLORIDE; CENTERS; TEMPON; STATE | ||
| Авторы |
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| Организации |
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Реферат:
ESR was used for studying the interaction between the stable nitroxyl radical TEMPO (2,2,6,6-tetramethylpyperidin-1-oxyl) and the titanium-magnesium catalysts TiCl4/MgCl2 and TiCl4/MgCl2 · nD (D is either diisobutyl phthalate or 2,2-diisobutyl-1,3-dimethoxypropane), as well as TiCl4/MgCl2 · nD treated with triethylaluminium. In all cases, only part of the surface titanium complexes (18–53 mol-%) exhibit Lewis acid properties and can interact with TEMPO. The portion of titanium complexes with acidic properties depends on the composition and preparation of the catalysts, and it decreases upon treatment with triethylaluminium.
Библиографическая ссылка:
Potapov A.G.
, Zakharov V.A.
, Mikenas T.B.
, Sergeev S.A.
, Volodin A.M.
Surface Acidic Sites on Supported Titanium-Magnesium Catalyst for Propylene Polymerization: ESR Study via Adsorption of Stable Nitroxyl Radicals
Macromolecular Chemistry and Physics. 1997. V.198. N9. P.2867-2873. DOI: 10.1002/macp.1997.021980916 WOS Scopus РИНЦ OpenAlex CAPlusCA
Surface Acidic Sites on Supported Titanium-Magnesium Catalyst for Propylene Polymerization: ESR Study via Adsorption of Stable Nitroxyl Radicals
Macromolecular Chemistry and Physics. 1997. V.198. N9. P.2867-2873. DOI: 10.1002/macp.1997.021980916 WOS Scopus РИНЦ OpenAlex CAPlusCA
Даты:
| Поступила в редакцию: | 6 нояб. 1996 г. |
| Принята к публикации: | 5 февр. 1997 г. |
| Опубликована в печати: | 1 сент. 1997 г. |
| Опубликована online: | 12 мар. 2003 г. |
Идентификаторы БД:
| ≡ Web of science: | WOS:A1997XW91500016 |
| ≡ Scopus: | 2-s2.0-0041026622 |
| ≡ РИНЦ: | 13251454 |
| ≡ OpenAlex: | W2034934479 |
| ≡ Chemical Abstracts: | 1997:611626 |
| ≡ Chemical Abstracts (print): | 127:278528 |