نتایج جستجو برای: graft polymerization

تعداد نتایج: 113644  

2011
Masami Kamigaito

This review presents a short overview of recent developments in metal-catalyzed living radical polymerization, mainly focusing on our recent research studies related to the subject. Metal-catalyzed living radical polymerization or atom transfer radical polymerization, which was originally developed via evolution of the metal-catalyzed Kharasch or atom transfer radical addition to chain-growth p...

Journal: : 2022

A native potato starch was modififi ed with vinyl acetate by graft polymerization in alkaline medium pH 10 the mode of temperature change from 70 to 80°C for 4 hours. The initiator process ammonium persulfate (NH ) 2 S O 8 . conversion 91,5%. chemical structure copolymer (Starch:Vinyl acetate) confifi rmed IR-spectroscopy. Composite materials and triethyl citrate tensile strength 24 MPa were ob...

A. Fathi M. Abbasian M. Jaymand M. Z. Ghadami

Exfoliated poly (Chloromethyl styrene-co-styrene)-g-polyacrylonitryle/organo- modified montmorillonite [P(CMSt-co-St)-g-PAN/O-MMT] nanocomposite was synthesized through solution intercalation method by using atom transfer and nitroxide mediated radical polymerization. At first, poly (chloromethyl styrene-costyrene) copolymer was synthesized by nitroxide - mediated “living” free radical polyme...

Journal: :Colloids and surfaces. B, Biointerfaces 2005
Michael R Murphy Keith M Faucher Xue-Long Sun Elliot L Chaikof Richard A Dluhy

A method has been developed to investigate the extent of polymer cross-linking that results following in situ photopolymerization of an acrylate-functionalized phospholipid assembly adsorbed onto a stabilized, membrane-mimetic film produced from a polyelectrolyte multilayer (PEM) on polytetrafluoroethylene (PTFE) grafts. The acrylate phospholipid monomer was synthesized, prepared as a unilamell...

2003
George F. Fanta Frederick C. Felker John H. Salch

Starch-coated polyethylene (PE) films were prepared by immersing PE in a hot, jet cooked solution of starch. They were allowed to react with acrylonitrile (AN) in the presence of ceric ammonium nitrate initiator, and the graft polymerization that occurred produced starch-g-polyacrylonitrile (PAN) coatings that contained about 25 wt % grafted PAN. The starch-g-PAN coatings tightly adhered to the...

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