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Digitale Medien

Polymerization of acrylonitrile initiated by ceric ion-citric acid redox system (1984)

Misra, G. S. ; Bassi, P. S. ; Abrol, S. L.

New York : Wiley-Blackwell

Journal of Polymer Science: Polymer Chemistry Edition 22 (1984), S. 1883-1889

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Details

ISSN: 0360-6376

Schlagwort(e): Physics ; Polymer and Materials Science

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: Heterogeneous polymerization of acrylonitrile initiated by ceric ammonium sulfate-citric acid (C.A.) redox system is reported at 35 ± 0.2°C under nitrogen atmosphere. The rate of monomer disappearance is found to be proportional to [C.A.]0, [Ce4+]0.63, and [Monomer]1.59. The rate of ceric ion disappearance is directly proportional to ceric ion concentration but independent of monomer concentration. The initial rate was independent of [H2SO4]. The molecular weight of polyacrylonitrile increases with increasing monomer concentration and decreasing ceric ion concentration. Activation energy was found to be 27.9 kJ/mol.

Zusätzliches Material: 6 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/pol.1984.170220810

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