Polymerization and Copolymerization of Ethylene with Higher α-Olefins Using Iron Chloride 2,6-bis(Imino)pyridyl Derivatives-Methylaluminoxane Catalytic Systems Full article
Journal |
Polymer Science Series A
ISSN: 0965-545X , E-ISSN: 1555-6107 |
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Output data | Year: 2001, Volume: 43, Number: 12, Pages: 1189-1192 Pages count : 4 | ||||
Tags | Aluminum compounds; Copolymerization; Differential scanning calorimetry; Iron compounds; Organometallics; Polyethylenes; Polyolefins; Reaction kinetics; Thermodynamic stability | ||||
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Abstract:
The kinetics of polymerization of ethylene and its copolymerization with I-octene and 4-methyl-1-pentene catalyzed by four new 2,6-bis(imino)pyridyl iron complexes containing bulky substituents in the ortho position of the aryl ring (R-2 = cyclopentyl, R-3 = H, Me, cyclopentyl, R-4 = H, Me) combined with methylaluminoxane were studied at various temperatures and ethylene pressures. The polymerizing activity of the synthesized complexes was measured in the temperature range 50-80degreesC and at pressures varying from 0.1 to 0.55 MPa. Using the DSC method, the thermal properties of the samples of PE were determined and their molecular characteristics estimated. A complex with two ortho cyclopentyl substituents was found to exhibit high thermal stability. The produced polymer samples possess high density (965-972 kg/m(3)), thus indicating the absence of branching in the macromolecules. The examined catalysts proved to be inactive in the copolymerization of ethylene with I-octene and 4-methyl-1-pentene.
Cite:
Ivanchev S.S.
, Tolstikov G.A.
, Badaev V.
, Ivancheva N.I.
, Oleinik I.I.
, Serushkin M.I.
, Oleinik I.V.
Polymerization and Copolymerization of Ethylene with Higher α-Olefins Using Iron Chloride 2,6-bis(Imino)pyridyl Derivatives-Methylaluminoxane Catalytic Systems
Polymer Science Series A. 2001. V.43. N12. P.1189-1192. WOS Scopus РИНЦ
Polymerization and Copolymerization of Ethylene with Higher α-Olefins Using Iron Chloride 2,6-bis(Imino)pyridyl Derivatives-Methylaluminoxane Catalytic Systems
Polymer Science Series A. 2001. V.43. N12. P.1189-1192. WOS Scopus РИНЦ
Original:
Иванчев С.С.
, Толстиков Г.А.
, Бадаев В.К.
, Иванчева Н.И.
, Олейник И.И.
, Серушкин М.И.
, Олейник И.В.
Полимеризация и сополимеризация этилена с высшими α-олефинами на каталитической системе 2,6-бис-(имино)пиридильные производные хлорида железа-метилалюмоксан
Высокомолекулярные соединения. Серия А. 2001. Т.43. №12. С.2053-2058. Scopus РИНЦ
Полимеризация и сополимеризация этилена с высшими α-олефинами на каталитической системе 2,6-бис-(имино)пиридильные производные хлорида железа-метилалюмоксан
Высокомолекулярные соединения. Серия А. 2001. Т.43. №12. С.2053-2058. Scopus РИНЦ
Dates:
Submitted: | Feb 5, 2001 |
Accepted: | Jul 17, 2001 |
Published print: | Dec 1, 2001 |
Identifiers:
Web of science | WOS:000173102200001 |
Scopus | 2-s2.0-0035605744 |
Elibrary | 13382800 |