Aqueous Polymerization of Acrylonitrile with Cerium(IV)-p-Hydroxyacetophenone Redox System | Zendy

M. Palanivelu | Zendy; K. E. N. Nalla Mohamed | Zendy; Mohammed Nawaz | Zendy

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Aqueous Polymerization of Acrylonitrile with Cerium(IV)-p-Hydroxyacetophenone Redox System

Author(s) -

M. Palanivelu,

K. E. N. Nalla Mohamed,

Mohammed Nawaz

Publication year - 2012

Publication title -

journal of chemistry

Language(s) - English

Resource type - Journals

eISSN - 2090-9063

pISSN - 2090-9071

DOI - 10.1155/2012/912947

Subject(s) - acrylonitrile , cerium , redox , aqueous solution , polymerization , chemistry , polymer chemistry , inorganic chemistry , organic chemistry , polymer , copolymer

Aqueous polymerization of acrylonitrile initiated by Ce(IV)/ p-hydroxy acetophenone (Ce(IV) – HAP) was studied in aqueous solution of sulfuric acid at 40 °C. The rate of polymerization was investigated at various concentrations of monomer, initiator, activator, sulfuric acid and the effect of temperature of 30-70 °C range was studied. The rate of polymerization is governed by the expression Rp = Kp [M]1.44 [Ce(IV)] 0.55 [HAP] 0.51. The activation energy of polymerization was found to be 17.9 kJ/mol. A probable mechanism consistent with the observed results is proposed and discussed

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