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Vinylarenetricarbonyl complexes of chromium as chain propagation regulators for polymerization of acrylic monomers
Author(s) -
Grishin Dmitry F.,
Semyonycheva Ludmila L.,
Artemov Alexander N.,
Telegina Ekaterina V.,
Valetova Natalia B.,
Illichev Ilya S.
Publication year - 2003
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.510
Subject(s) - polymerization , chemistry , monomer , polymer chemistry , molar mass distribution , methyl methacrylate , polymer , acrylate , kinetic chain length , methacrylate , chain transfer , chain termination , solution polymerization , radical polymerization , organic chemistry
The polymerization of methyl methacrylate and butyl acrylate initiated by azo‐bis‐isobutyronitrile in the presence of metal‐containing monomers ( p ‐methylstyrene‐, stilbene‐ and α‐methylstyrene‐chromiumtricarbonyl) was studied. Kinetic parameters (i.e. the decrease in the autoacceleration during the polymerization of acrylic monomers, its shift towards a high conversion region in the presence of α‐methylstyrenechromiumtricarbonyl, a linear dependence of the molecular weight of a polymethyl methacrylate and the shift of molecular‐weight distribution curves to a high molecular weight region with conversion) demonstrate the influence of vinylarenetricarbonyl complexes of chromium on basic steps of polymerization. It is important to note that the above organometallic compounds enable the controlled synthesis of polymers under temperature conditions (50–70 °C) corresponding to those of the industrial polymer production. Copyright © 2003 John Wiley & Sons, Ltd.