Ceric ion induced redox polymerization of acrylonitrile in presence of cellulose

Kulkarni, Amruta; Mehta, P. C.

doi:10.1002/app.1965.070090724

Cited by 37 publications

(1 citation statement)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, the reactions involving carbohydrates are of considerable interest. In the recent years, the use of tetravalent cerium as an initiator of the graft polymerization of vinyl monomers on cellulosic and other textile materials has gained considerable importance on account of its high grafting efficiency,15, 16 compared with the other known redox systems such as ferrous‐hydrogen peroxide and thiosulfate‐persulfate 17, 18. There is a research programmed to investigate the vinyl graft polymerization onto various natural fibers using Ce(IV) as catalyst and carbohydrates i.e., glucose, sucrose etc, as catalyst with a view to achieving higher grafting efficiency.…”

Section: Introductionmentioning

confidence: 99%

Polymerization of acrylonitrile initiated by Ce(IV)‐sucrose redox system: A kinetic study

Mahadevaiah¹,

Demappa²,

Sangappa³

et al. 2008

J of Applied Polymer Sci

View full text Add to dashboard Cite

The polymerization of acrylonitrile (M), initiated by the free radicals formed in situ in the Ce (IV)-sucrose redox system, was studied in aqueous sulfuric acid medium under nitrogen atmosphere in the temperature range of 30-608C. . The rate of Ceric ion disappearance and the rate of polymerization R p have been measured. The effects of some water-miscible organic solvents, surfactants, ionic strength, and complexing agents on the rate of polymerization were investigated. The temperature-dependence of the rate was studied and the activation parameters were computed using the Arrhenius and Eyring plots. A mechanism consistent with the experimental data, involving Ce(IV)-sucrose complex formation, which generates free radicals, is suggested. The chain termination step of the polymerization reaction was determined.

show abstract

Section: Introductionmentioning

confidence: 99%

Polymerization of acrylonitrile initiated by Ce(IV)‐sucrose redox system: A kinetic study

Mahadevaiah¹,

Demappa²,

Sangappa³

et al. 2008

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

Grafting vinyl monomers onto silk fibers III. Graft copolymerization of methyl methacrylate onto silk using tetravalent cerium as initiator

Nayak

Lenka

Pati

1979

Angew. Makromol. Chem.

View full text Add to dashboard Cite

The use of tetravalent ceric ions to initiate graft‐copolymerization of methyl methacrylate onto silk has been investigated. The rate of grafting has been determined by varying monomer, cerium (IV), temperature, and nature of silk. The graft yield increases with increasing monomer concentration up to 0.65 mol/l and with further increase of monomer, the graft yield decreases. The percentage of grafting increases with increasing ceric ion concentration up to 0.03 mol/l and thereafter it decreases. The rate of reaction is temperature dependent, with increasing temperature, the graft yield increases. The grafting is considerably influenced by chemical modification prior to grafting. The effect of different species of ceric ion and CuSO4 on the rate of grafting has also been investigated.

show abstract

Grafting vinyl monomers onto silk fibers, VII. Graft copolymerization of methyl methacrylate onto silk using peroxydiphosphate as initiator

Lenka

Nayak

Mishra

1980

Angew. Makromol. Chem.

View full text Add to dashboard Cite

Graft copolymerization of methyl methacrylate onto silk was investigated in aqueous solution using potassium peroxydiphosphate as initiator. The rate of grafting was determined by varying monomer, peroxydiphosphate ion, temperature, and solvent. The graft yield increased with increasing peroxydiphosphate ion upto 8 × 10−3 mol/1 and with further increase of peroxydiphosphate ion the graft yield decreased. The graft yield increased with increasing monomer concentration upto 9 wt.‐% and with further increase of monomer the graft yield decreased. The rate of grafting increased with the increase of temperature. The effect of acid and water soluble solvents and salts on graft yield was investigated and a suitable rate expression was derived.

show abstract

Ceric ion induced redox polymerization of acrylonitrile in presence of cellulose

Cited by 37 publications

References 4 publications

Polymerization of acrylonitrile initiated by Ce(IV)‐sucrose redox system: A kinetic study

Polymerization of acrylonitrile initiated by Ce(IV)‐sucrose redox system: A kinetic study

Grafting vinyl monomers onto silk fibers III. Graft copolymerization of methyl methacrylate onto silk using tetravalent cerium as initiator

Grafting vinyl monomers onto silk fibers, VII. Graft copolymerization of methyl methacrylate onto silk using peroxydiphosphate as initiator

Contact Info

Product

Resources

About