Results 11 to 20 of about 3,346 (221)
MODIFICATION OF CHITOSAN BY GRAFT COPOLYMERIZATION
Proceedings of the YSU B: Chemical and Biological Sciences, 2021 The interaction of N-monomethylol urea with maleic anhydride is studied. The product of this reaction forms an oligomeric monomer by condensation with chitosan. This oligomeric monomer has a capacity of copolymerization in aqueous media with other soluble monomers such as acrylic acid forming crosslinked water-swelling copolymer.
Mejlum L. Yeritsyan +4 more
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Kobunshi Kagaku, 1964 ジアルデヒドデンプン (DAS) へのメチルメタクリレート (MMA) とメチルアクリレート (MA) のグラフト重合を行なった。セリウム塩, 過硫酸塩または高級漂白剤の一種である “シルブライト” などがきわめて強い触媒活性を示し, 高いグラフト率とグラフト効率でそれぞれのグラフトポリマーが得られた。またジァルデヒドデンプン自身がMMA, MAの重合に関しては相当の誘導期間はあるが, 触媒活性を示すことが認められた。しかしながら酢酸ビニルやアクリ質ニトリルなどのモノマーでは触媒活性を示さなかった。DAS, MMA, セリウム塩の3成分系での重合においてグラフト重合の見かけ上の活性化エネルギーは10.0kcal/molであり, またDASの濃度の1 ...
Ide, Fumio, Nakatsuka, Kazuo
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Dynamic Mechanical Properties of Vietnam Modified Natural Rubber via Grafting with Styrene
International Journal of Polymer Science, 2017 The dynamic mechanical behavior of modified deproteinized natural rubber (DPNR) prepared by graft copolymerization with various styrene contents was investigated at a wide range of temperatures.
T. A. Dung +7 more
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Synthesis of a graft copolymer of chloroprene rubber with acrylic acid as a shoe adhesive [PDF]
E3S Web of Conferences, 2023 Synthesized graft copolymers of chloroprene rubber with acrylic acid. A mixture of benzene and dimethylformamide was used as a solvent, and potassium persulfate was used as a polymerization initiator.
Rafikov Adham +3 more
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Modification of solid-phase polymeric surface by means of grafting of acrylic monomers [PDF]
Известия Саратовского университета. Новая серия: Серия Химия. Биология. ЭкологияGraft copolymerization onto a solid polymer surface is an eff ective tool for its modifi cation. A large number of works have been published and require systematization.
Bayburdov, Telman А. +1 more
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International Journal of Polymer Science, 2016 Sugarcane bagasse, lignocellulosic residue from the sugar industry, is an abundant and renewable bioresource on the earth. The application of ionic liquids in sugarcane bagasse biorefinery is gaining increasing interest.
Ming-Jie Chen +3 more
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Molecules, 2017 This contribution presents an updated overview of the different copolymers containing stereoregular polystyrene blocks. Special emphasis is placed on syndiospecific and isospecific copolymerization of styrene with co-monomers (ethylene and α-olefins ...
Eva Laur +2 more
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Improvement in Physical Properties of MMA Grafted Coir Fibres
CORD, 2015 This work deals with the surface modification of Coir fibre through graft copolymerization process. Graft copolymerization of methyl methacrylate (MMA) onto coir fibre was carried out with Potassium per sulphate (PPS) as an initiator under the catalytic ...
Lakshmi N. S. +3 more
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Graft copolymerization of methacrylic acid monomers onto polypropylene fibers [PDF]
Chemical Industry and Chemical Engineering Quarterly, 2014 In recent years, graft copolymerization has been widely used to insert various functional groups onto polymers. In our study, methacrylic acid monomers are grafted to polypropylene (PP) fibers to make them hydrophilic while maintaining their ...
Mazhar Majid +3 more
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Indonesian Journal of Chemistry, 2014 Controlled Release Urea Fertilizers-based hydrogels matrices was synthesized by graft copolymerization of acrylamide onto the rice straw cellulose backbones in the presence of silica fillers using simultaneous graft copolymerization by gamma irradiation ...
Deni Swantomo +3 more
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