Polymerization of Propylene with Highly Active Titanium-Magnesium Catalysts Full article
Journal |
Polymer Science U.S.S.R.
ISSN: 0032-3950 |
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Output data | Year: 1980, Volume: 22, Number: 1, Pages: 23-30 Pages count : 8 DOI: 10.1016/0032-3950(80)90413-X | ||
Tags | CATALYSTS - Titanium Magnesium Alloys | ||
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Abstract:
A study has been made of the effect of the composition of highly active, titanium-magnesium catalysts obtained by reacting TiCl4, TiCl3 or the TiCl4·nC6H5COOC2H5 complex with anhydrous, finely dispersed magnesium chloride, on their activity and stereoregulating ability in polymerization of propylene. The isotacticity of the polypropylene is increased by use of the TiCl4·C6H5COOC2H5 complex, by heating the titanium-magnesium catalysts, replacing the AlEt2Cl cocatalyst by AlEt3 or by adding ethyl p-methoxybenzoate to the reaction mixture. By varying these factors it is possible to increase the isotacticity of polypropylene from 40% to 95%, while preserving high activity at a level more than ten times the activity of δ TiCl3·O·33AlCl3. The polypropylene obtained in the presence of the titanium-magnesium catalysts is of low molecular weight. The structure and substructure of these catalysts has been investigated and suggestions are made about the composition of the active component and the cause of the variation in catalytic properties.
Cite:
Vermelʹ Y.Y.
, Zakharov V.A.
, Bukatova Z.K.
, Shkurina G.P.
, Yechevskaya L.G.
, Moroz E.M.
, Sudakova S.V.
Polymerization of Propylene with Highly Active Titanium-Magnesium Catalysts
Polymer Science U.S.S.R.. 1980. V.22. N1. P.23-30. DOI: 10.1016/0032-3950(80)90413-X Scopus РИНЦ
Polymerization of Propylene with Highly Active Titanium-Magnesium Catalysts
Polymer Science U.S.S.R.. 1980. V.22. N1. P.23-30. DOI: 10.1016/0032-3950(80)90413-X Scopus РИНЦ
Original:
Вермель Е.Е.
, Захаров В.А.
, Букатова З.К.
, Шкурина Г.П.
, Ечевская Л.Г.
, Мороз Э.М.
, Судакова С.В.
Полимеризация пропилена на высокоактивных титанмагниевых катализаторах
Высокомолекулярные соединения. Серия А. 1980. Т.22. №1. С.22-28. WOS РИНЦ
Полимеризация пропилена на высокоактивных титанмагниевых катализаторах
Высокомолекулярные соединения. Серия А. 1980. Т.22. №1. С.22-28. WOS РИНЦ
Dates:
Submitted: | Jul 10, 1978 |
Published print: | Jan 1, 1980 |
Published online: | Jun 11, 2003 |
Identifiers:
Scopus | 2-s2.0-0019263171 |
Elibrary | 30971106 |
OpenAlex | W2022558524 |