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Polymerization of acrylonitrile initiated by thiourea-vanadium(V) redox system by Baishnab C. Singh; Triyama R. Mohanty; Padma L. Nayak is a Materials Science article available to read on EtoBox.

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The kinetics of polymerization of acrylonitrile initiated by V 5 + thiourea or V 5+-ethylene thiourea have been studied at 30, 35 and 40°C in nitrogen. The rates of polymerization and V 5+ disappearance, and the chain lengths of polymers were measured. The kinetics are consistent with the formation of an intermediate complex between the thiol form of thiourea or ethylene thiourea and the oxidant decomposition of which leads to the initiating radical. The effects of certain organic solvents (water miscible) and salts on the rate of polymerization have been studied. A kinetic scheme has been proposed and the various rate and energy parameters evaluated.

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Author

Baishnab C. Singh; Triyama R. Mohanty; Padma L. Nayak

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0014-3057)

Published

1976

Language

EN

Field

Materials Science (Physical Sciences)