Journal ArticleDOI
Grafting Vinyl Monomers onto Chemically Modified Wool Fibers: Graft Copolymerization of Methyl Methacrylate onto Reduced Wool Fibers Using Acetylacetonate Complex of Manganese(III)
TLDR
In this article, the graft copolymerization of methyl methacrylate (MMA) onto reduced Indian Chokla wool fibers was studied in aqueous solution using the acetylacetonato complex of Mn(III) as the initiator.Abstract:
The graft copolymerization of methyl methacrylate (MMA) onto reduced Indian Chokla wool fibers was studied in aqueous solution using the acetylacetonato complex of Mn(III) as the initiator. Perchloric acid was found to catalyze the reaction. The rate of grafting was investigated by varying the concentration of the monomer and the complex, acidity of the medium, the temperature, and the reaction medium. It is observed that the graft yield increases with increasing concentration of the chelate and acid and with increasing temperature. There is an increase in graft yield within a certain concentration range of the monomer, after which it falls. The grafting is considerably influenced by changing the solvent composition of the reaction medium. A comparative study reveals that oxidized and reduced wools are better substrates than untreated and other chemically modified wools. The effect of various monomers on graft yield is investigated. MMA is found to be a most active monomer compared to other vinyl...read more
Citations
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Grafting Vinyl Monomers onto Chitosan:IV:Graft Copolymerized of Acrylicacid onto Chitosan Using Ceric Ammonium Nitrate as the Initiator— Characterization and Antimicrobial Activities
TL;DR: In this article, acrylic acid was grafted onto chitosan by using the ceric ammonium nitrate as the initiator and the effect of initiator concentration, monomer concentration, time & temperature on % G and % GE were studied.
Journal ArticleDOI
Photoinduced graft copolymerization: X—Graft copolymerization of methyl methacrylate onto wool using isoquinoline-sulphur dioxide charge-transfer complex as the initiator
TL;DR: The photoinduced graft copolymerization of methyl methacrylate onto wool fiber was investigated using an isoquinoline-sulphur dioxide charge transfer complex as the initiator as discussed by the authors.
Journal ArticleDOI
Graft copolymerization onto wool fibers: Graft copolymerization of acrylic acid onto wool fibers initiated by quinquivalent vanadium.
TL;DR: Graft copolymerization of acrylic acid onto wool fibers has been carried out with quinquivalent vanadium as the initiator in an aqueous medium under nitrogen atmosphere as discussed by the authors.
Journal ArticleDOI
Graft Copolymerization of Wool Fibers
Rajani K. Samal,Giti Sudha Giri +1 more
TL;DR: Grafting reactions provide a potential route for significantly altering the physical, mechanical, and biochemical properties of such polymers as discussed by the authors, which possesses great potential for tailoring material properties to specific end uses, such as improved dyeability, adhesion to a variety of substances, wash and wear rating, electrical conductance, bacteriocidal properties, settability, tensile properties, thermal stability, biocompatibility, etc.
Journal ArticleDOI
Grafting Vinyl Monomers onto Silk Fibers: Graft Copolymerization of Vinyl Monomers onto Silk Using the Vanadyl Acetylacetonate Complex
TL;DR: In this paper, the graft copolymerization of methyl methacrylate (MMA) onto mulberry silk fibers was studied in aqueous solution using the acetylacetonate oxovanadium (IV) complex.
References
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Journal ArticleDOI
Destructive Autoxidation of Metal Chelates. III. Effects of Additives on the Reaction. Metal Acetylacetonates as Radical Sources
Journal ArticleDOI
Grafting of maleic anhydride on polyethylene. I. Mechanism of grafting in a heterogeneous medium in the presence of radical initiators
TL;DR: Grafting of maleic anhydride on polyethylene is found to take place also in a homogeneous medium as discussed by the authors, and the course of reaction in nitrogen and in air and the influence of temperature of initiator and polymer concentrations suggest that grafting is due to the chain transfer reaction to polyethylenes.
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Grafting in reaction of polyethylene and poly(maleic anhydride)
TL;DR: Polyethylene has been grafted in a reaction with poly(maleic anhydride) in the presence of radical initiators, and the kinetics suggest that side chains are formed via a combination of the macroradicals of both polymers.
Journal ArticleDOI
Wool graft copolymers initiated by azobisisobutyronitrile
A. Bendak,A. Hebeish +1 more
TL;DR: Grafting of methyl methacrylate onto wool fibers using azobisisobutyronitrile as initiator has been investigated under a variety of conditions as mentioned in this paper, and the grafting reaction was favorably influenced considerably by the nature of solvent used; it follows the order methanol > dimethylformamide > benzene.