Kinetics of polymerization of acrylonitrile initiated by the redox system Mn3+/citric acid were investigated in aqueous sulphuric acid in the range of 20-25Β°; initial rates of polymerization and Mn 3Γ· disappearance etc. were measured. The effects of certain water miscible organic solvents and certai
Polymerization of acrylonitrile initiated by the redox system peroxydisulphate-isoamyl alcohol catalyzed by silver ion
β Scribed by A. Sarpudeen; I. Tajuddin; Q. Anwaruddin
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 155 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0014-3057
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β¦ Synopsis
A~tract--The polymerization of acrylonitrile in aqueous media initiated by peroxydisulphate isoamyl alcohol(IAA) redox pair catalyzed by silver ion was studied at low conversion. The polymerization had kinetic orders 1.5 with respect to monomer, 0.6 (peroxydisulphate) and 0.5 (silver ion). The reactions were carried out at various temperatures and the overall activation energy was found to be 5.5 kcal/mol. The effect of certain water-miscible organic solvents was also investigated. A mechanism of initiation is tentatively proposed.
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The kinetics of aqueous polymerization of acrylonitrile initiated by peroxomonosulphate-Co(II) redox system have been investigated in the range 30-50Β°C under nitrogen at a fixed ionic strength of 0.30mol-dm -3. The overall rate of polymerization, followed gravimetrically, was found to be proportiona
The kinetics of polymerization of acrylonitrile and methyl methacrylate initiated by the redox system 2,2'-thiodiethanol/trichloroaquobipyridylmanganese(III) have been investigated in the temperature range 20-35OC in dilute sulfuric acid. The oxidation of the substrate in the absence of monomer has
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