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Analysis and regulation of the molecular structure of ethylene with hexene-1 copolymers obtained on the high-activity supported Ziegler-Natta catalysts

Abstract

Physic-mechanical and rheological properties of ethylene with α-olefins copolymers are determined by molecular and supramolecular structure, which depends on the molecular-mass characteristics, comonomer content, as well as the uniformity of branching of polymer chains with different molecular weights (compositional heterogeneity). Parameters of molecular weight distribution, molecular structure and compositional heterogeneity of ethylene with hexene-1 copolymers with different compositions, obtained by high-active Ti- and V–Mg Ziegler-Natta catalysts are studied, and the possibility of regulating these parameters to improve the polymers quality are shown.

About the Authors

M. A. Matsko
Boreskov Institute of Catalysis SB RAS, Novosibirsk
Russian Federation


L. G. Echevskaya
Boreskov Institute of Catalysis SB RAS, Novosibirsk
Russian Federation


T. B. Mikenas
Boreskov Institute of Catalysis SB RAS, Novosibirsk
Russian Federation


M. I. Nikolaeva
Boreskov Institute of Catalysis SB RAS, Novosibirsk
Russian Federation


M. P. Vanina
Boreskov Institute of Catalysis SB RAS, Novosibirsk
Russian Federation


V. A. Zakharov
Boreskov Institute of Catalysis SB RAS, Novosibirsk
Russian Federation


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Review

For citations:


Matsko M.A., Echevskaya L.G., Mikenas T.B., Nikolaeva M.I., Vanina M.P., Zakharov V.A. Analysis and regulation of the molecular structure of ethylene with hexene-1 copolymers obtained on the high-activity supported Ziegler-Natta catalysts. Kataliz v promyshlennosti. 2011;(1):20-25.

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ISSN 1816-0387 (Print)
ISSN 2413-6476 (Online)