SOLVENT EFFECTS IN THE POLYMERIZATION OF 1,3-BUTADIENE WITH COBALT(II) 2-ETHYLHEXOATE-DIETHYLALUMINIUM CHLORIDE CATALYST | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

5704400

Reference Type

Journal Article

Title

SOLVENT EFFECTS IN THE POLYMERIZATION OF 1,3-BUTADIENE WITH COBALT(II) 2-ETHYLHEXOATE-DIETHYLALUMINIUM CHLORIDE CATALYST

Author(s)

Upadhyay, VK; Sivaram, S

Year

1987

Is Peer Reviewed?

Journal

Indian Journal of Technology
ISSN: 0019-5669

Publisher

COUNCIL SCIENTIFIC INDUSTRIAL RESEARCH

Location

NEW DELHI

Volume

Issue

Page Numbers

669-673

Language

English

Web of Science Id

WOS:A1987M275500021

Abstract

Polymerization of 1,3-butadiene to high-cis-1,4-polybutadiene initiated by cobalt(II)2-ethyl hexoate-diethylaluminum chloride has been studied in benzene-butene-1, benzene-butane, benzene-hexene-1 and benzene-hexane solvent mixtures of different compositions. With olefinic cosolvents, conversions show pronounced maximum at a defined solvent composition. Molecular weights rapidly decrease with increasing proportion of olefinic cosolvents. Aliphatic solvents are relatively inefficient. The results are explained in terms of the relative pi +ZZcomplex stabilities of the active Co (1) species in aromatic, diene and olefinic solvents.