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Vinyl polymerization of acrylonitrile by the Ce(IV)-glucose redox system (1983)

Padhi, N. P. ; Singh, B. C.

Springer

Colloid & polymer science 261 (1983), S. 390-393

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ISSN: 1435-1536

Keywords: vinyl polymerization ; Ce(IV)-initiated polymerization ; polymerization by Ce(IV)-glucose redox system ; redox polymerization

Source: Springer Online Journal Archives 1860-2000

Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

Notes: Abstract Aqueous polymerization of acrylonitrile (M) initiated by the Ce(IV)-glucose (R) redox system has been studied under nitrogen in the temperature range of 30–40 °C. The rate of polymerization (Rp) is proportional to [M]2, [R] and inversely proportional to [Ce(IV)]. The rate of ceric ion disappearance is proportional to [R] and [Ce(IV)]. The end group in the polymer is characterised by IR spectra. A suitable kinetic scheme has been proposed and explained in the light of these experimental findings.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01418211

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A study on graft copolymerization of methyl methacrylate onto jute fiberCorrected proofs received January 21, 1985 (1985)

Tripathy, S. S. ; Jena, S. ; Misra, S. B. ; [et al.]

New York, NY [u.a.] : Wiley-Blackwell

Journal of Applied Polymer Science 30 (1985), S. 1399-1406

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ISSN: 0021-8995

Keywords: Chemistry ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics

Notes: A kinetic study of the graft copolymerization of methyl methacrylate onto jute fiber using KMnO4-malonic acid redox initiator system has been made. Effects of the concentrations of malonic acid, monomer, and KMnO4 on graft yield have been studied. Besides, the effects of temperature, acid, and reaction medium, some inorganic salts on graft yield have been investigated. The most remarkable features of the investigation include the proposition of a mechanism, derivation of rate expression for the grafting process, and characterization of the grafted fiber by thermogravimetric analysis.

Additional Material: 6 Ill.