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Ethylene Polymerization over Supported Titanium-Magnesium Catalysts: Heterogeneity of Active Centers and Effect of Catalyst Composition on the Molecular Mass Distribution of Polymer Научная публикация

Конференция 5th International Workshop on Heterogeneous Ziegler‐Natta Catalysts
18-21 мар. 2007 , Ishikawa
Журнал Macromolecular Symposia
ISSN: 1022-1360 , E-ISSN: 1521-3900
Вых. Данные Год: 2007, Том: 260, Номер: Heterogeneous Ziegler-Natta Catalysts, Страницы: 184-188 Страниц : 5 DOI: 10.1002/masy.200751427
Ключевые слова Fractionation of polymers, Molecular weight distribution/molar mass distribution, Polyethylene (PE), Titanium-magnesium catalysts (TMC), Ziegler-natta polymerization
Авторы Zakharov Vladimir 1 , Matsko Mikhail 1 , Echevskaya Ludmila 1 , Mikenas Tatiana 1
Организации
1 Boreskov Institute of Catalysis SB RAS, Prospect Ak. Lavrentieva 5, Novosibirsk, 630090, Russia

Реферат: New experimental approach was used for analysis of molecular weight distribution (MWD) of polymers produced over titanium-magnesium catalysts (TMC). Polymers were fractionated on to fractions with narrow MWD (polydispersity (PD) values Mw/Mn ≤ 2). Then some of these fractions were combined to get the minimal quantity of fractions with PD values close to 2 (Flory components). It was found that three fractions corresponding to three groups of active centers are sufficient for proper fitting experimental MWD curve for PE obtained over TMC with different Ti content and with different hydrogen concentration in polymerization.
Библиографическая ссылка: Zakharov V. , Matsko M. , Echevskaya L. , Mikenas T.
Ethylene Polymerization over Supported Titanium-Magnesium Catalysts: Heterogeneity of Active Centers and Effect of Catalyst Composition on the Molecular Mass Distribution of Polymer
Macromolecular Symposia. 2007. V.260. NHeterogeneous Ziegler-Natta Catalysts. P.184-188. DOI: 10.1002/masy.200751427 WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
Опубликована в печати: 1 дек. 2007 г.
Опубликована online: 7 янв. 2008 г.
Идентификаторы БД:
Web of science: WOS:000252873800027
Scopus: 2-s2.0-38849124260
РИНЦ: 13540812
Chemical Abstracts: 2008:193315
Chemical Abstracts (print): 148:380004
OpenAlex: W2117386574
Цитирование в БД:
БД Цитирований
Web of science 9
Scopus 11
РИНЦ 12
OpenAlex 9
Альметрики: