Effect of Mono- and Multichlorinated Organic Compounds-Chlorocyclohexane and Hexachloro- p -xylene-On the Catalytic Properties of Titanium-Magnesium Catalysts in the Homo- and Copolymerization of Ethylene with 1-Hexene.

Autor: Salakhov II; R&D Center PJSC Nizhnekamskneftekhim, 423574 Nizhnekamsk, Russia., Mikenas TB; Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia., Zakharov VA; Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia., Kozlov VG; Institute of Ecology of the Volga River Basin, Russian Academy of Sciences, 445003 Togliatti, Russia., Matsko MA; Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia., Suslova TN; R&D Center PJSC Nizhnekamskneftekhim, 423574 Nizhnekamsk, Russia.
Jazyk: angličtina
Zdroj: International journal of molecular sciences [Int J Mol Sci] 2022 Sep 07; Vol. 23 (18). Date of Electronic Publication: 2022 Sep 07.
DOI: 10.3390/ijms231810335
Abstrakt: Ethylene polymerization and ethylene/1-hexene copolymerization over the titanium-magnesium catalytic system in the presence of chlorocyclohexane (CHC) and hexachloro-p-xylene (HCPX) has been studied. Modification of TMC with chlorocyclohexane and hexachloro-p-xylene increased catalyst activity severalfold for both ethylene polymerization and ethylene/1-hexene copolymerization. The key kinetic regularities of ethylene homopolymerization and ethylene/1-hexene copolymerization in the presence of CHC and HCPX were determined, and the copolymerization constants were measured. Molecular characteristics and the copolymer composition were determined for the synthesized samples of ethylene homopolymers and ethylene/hexene copolymers. Modification of the titanium-magnesium catalyst with chlorinated organic compounds reduced 1-hexene content in the copolymer; polymerization was sensitive to 1-hexene as a regulator of polymer molecular weight. The potential mode of action of chlorinated organic modifiers on catalytic properties of titanium-magnesium catalyst is discussed.
Databáze: MEDLINE
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje