Başlık için Kimya Bölümü listeleme
Toplam kayıt 209, listelenen: 158-177
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Preparation and characterization of sulfonyl-hydrazine attached poly(styrene-divinylbenzene) beads for separation of albumin
(Elsevier Science Bv, 2007)Novel sulfonyl-hydrazine carrying poly(styrene-divinylbenzene), poly(S-DVB)-S-NH2 ion-exchange beads (size between 210 and 425 mu m) were prepared via suspension polymerization and, were first used as an ion-exchange support ... -
Preparation of a new nanoconductive ROMP copolymer and its application as solid polymer electrolyte
(Elsevier Science Sa, 2013)New thermoplastic host copolymer based on oxanorbornene dicarboximides for solid polymer electrolytes was synthesized and characterized by spectral methods. The corresponding new nanoconductive ROMP copolymers were prepared ... -
Preparation of a novel functionalized magnetic nanobiocomposite as a carrier for protein adsorption
(TAYLOR & FRANCIS INC, 2020)This study aims the synthesis of a novel functionalized magnetic nanocarrier based on xanthan gum biopolymer. Glycidyl methacrylate was grafted on xanthan gum chains by radical polymerization reaction using two types of ... -
Preparation of methacrylamide grafted and dye-ligand immobilized PET fibers: Studies of adsorption and purification of lysozyme
(John Wiley & Sons Inc, 2008)In this study, novel affinity chromatographic fibers was prepared from methacrylamide grafted poly(ethylene terephthalate), PET-g-pMAA, using benzoyl-peroxide as an initiator. A dye ligand (i.e., Procion Brown) as a ligand ... -
Preparation of nanofibrous polymer grafted magnetic poly(GMA-MMA)-g-MAA beads for immobilization of trypsin via adsorption
(Elsevier, 2008)Poly (glycidylmethacrylate-methylmethacrylate), poly(GMA-MMA) beads were prepared via suspension polymerization in the presence of ferric ions. The epoxy groups of the poly(GMA-MMA) beads were converted into amino groups ... -
Preparation of poly (glycidylmethacrylate-methylmethacrylate) magnetic beads: Application in lipase immobilization
(Elsevier Science Bv, 2008)Magnetic bead was prepared from the monomers glycidylmethacrylate (GMA) and methylmethacrylate (MMA) via suspension copolymerization in the presence of ferric ions. The magnetic beads were characterized with scanning ... -
Procion blue MX-3G-attached microporous poly(2-hydroxyethyl methacrylate) membranes for copper, arsenic, cadmium, and mercury adsorption
(Marcel Dekker Inc, 1999)pHEMA membranes carrying 25.6 mmol Procion Blue MX-3G/m(2) were used for removal of heavy metal ions (i.e., copper, arsenic, cadmium, and mercury) from aqueous media containing different amounts of these ions (0.1-4.5 ... -
Procion Brown MX-5BR attached and Lewis metals ion-immobilized poly(hydroxyethyl methacrylate)/chitosan IPNs membranes: Their lysozyme adsorption equilibria and kinetics characterization
(Pergamon-Elsevier Science Ltd, 2002)Interpenetration networks (IPNs) in membrane form were synthesized from 2-hydroxyethyl methacrylate (HEMA) and chitosan (pHEMA/chitosan) via UV-initiated photo-polymerization in the presence of an initiator alpha, ... -
Procion Green H-4G immobilized on a new IPN hydrogel membrane composed of poly(2-hydroxyethylmethacrylate)/chitosan: preparation and its application to the adsorption of lysozyme
(Elsevier Science Bv, 2002)The adsorption of lysozyme has been investigated on the Procion Green H-4G immobilized novel poly(2-hydroxyethyl methacrylate)/chitosan) (pHEMA/chitosan; IPN) porous hydrogel membrane. The IPN membranes were prepared by ... -
Procion Green H-4G immobilized poly(hydroxyethylmethacrylate/chitosan) composite membranes for heavy metal removal
(Elsevier Science Bv, 2003)The effective removal of toxic heavy metals from environmental samples still remains a major topic of present research. Metal-chelating membranes are very promising materials as adsorbents when compared with conventional ... -
Pyrolysis of Table Sugar
(Hindawi Publishing Corporation, 2013)Table sugars were pyrolyzed at different temperatures (300, 400, and 500 degrees C) in a fixed-bed reactor. The effect of pyrolysis temperature on yields of liquid, solid, and gaseous products was investigated. As expected ... -
Radiation effect on polyadenylic acid in aqueous solution
(Pergamon-Elsevier Science Ltd, 1995)In this study, dilute solution properties of polyadenylic acid (polyA), G values for single strand break formation G(ssb), Arrhenius parameters (25-45 degrees C), the kinetics of strand break in the absence and presence ... -
Release characteristics of diclofenac sodium from poly(vinyl alcohol)/sodium alginate and poly(vinyl alcohol)-grafted-poly(acrylamide)/sodium alginate blend beads
(Elsevier, 2007)In this study, acrylamide (AAm) was grafted onto poly(vinyl alcohol) (PVA) with UV radiation at ambient temperature. The graft copolymer (PVA-g-PAAm) was characterized by using Fourier transform infrared spectroscopy (FTIR), ... -
Removal of Common Heavy Metals from Aqueous Solutions by Waste Salvadora persica L. Branches (Miswak)
(Springer International Publishing Ag, 2014)The adsorption ability of miswak (Salvadora persica L.) waste was investigated for the removal of common heavy metals; Pb(II), Cu(II), Ni(E) and Cd(II), from aqueous systems. The miswak mainly consists of saponins, tannins, ... -
Removal of heavy mercury(II), cadmium(II) and zinc(II) metal ions by live and heat inactivated Lentinus edodes pellets
(Elsevier Science Sa, 2008)The live and heat inactivated forms of Lentinus edodes pellets were used for the biosorption of Hg2+, Cd2+ and Zn2+ ions. The maximum adsorption of metal ions on the live and heat inactivated pellets of fungus was observed ... -
Removal of Remazol Brilliant Blue R dye from aqueous solutions by adsorption onto immobilized Scenedesmus quadricauda: Equilibrium and kinetic modeling studies
(Elsevier Science Bv, 2009)The green algae Scenedesnnus quadricauda was immobilized in alginate gel beads. The immobilized active (IASq) and heat inactivated S. quadricauda (IHISq) were used for the removal of Remazol Brilliant Blue R (Cl 61200, ... -
Removal of various anionic dyes using sodium alginate/poly(N-vinyl-2-pyrrolidone) blend hydrogel beads
(Springer, 2015)In this study, novel blend hydrogel beads were prepared for the use in removal of anionic textile dyes due to their hazardous impact to nature. Sodium alginate and sodium alginate/poly(N-vinyl-2-pyrrolidone) beads were ... -
Reverse Engineering To Characterize Redox Properties: Revealing Melanin's Redox Activity through Mediated Electrochemical Probing
(Amer Chemical Soc, 2018)Melanins are ubiquitous in nature, yet their functions remain poorly understood, because their structures and properties elude characterization by conventional methods. Since many of the proposed functions of melanins ... -
Reversible immobilization of tyrosinase onto polyethyleneimine-grafted and Cu(II) chelated poly(HEMA-co-GMA) reactive membranes
(Elsevier, 2004)The present study describes the preparation of poly(HEMA-co-GMA) reactive membranes that were grafted with polyethylenimine (PEI) following UV photo-polymerization. The immobilization of tyrosinase was carried out via ... -
Ring opening polymerization of 2,5-dihydro-2,5-dimethoxyfuran by electrochemical initiation
(Springer, 2004)2,5-Dihydro-2,5-dimethoxyfuran (DHMF) was polymerized via constant current electrolysis (CCE), in CH3CN-NaClO4 solvent-electrolyte couple. Poly(DHMF) was obtained from the anolyte. The effect of current density, temperature, ...