Results 151 to 160 of about 37,643 (209)
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Competitive Adsorption of Functionalized Polymers
Langmuir, 1996The adsorption and desorption of functionalized polystyrene-block-polybutadiene diblock copolymers from dilute solutions in toluene onto silicon wafers are investigated by means of null ellipsometry. The short polybutadiene block is functionalized by a reaction with 4-(3,5-dioxo-1,2,4-triazolidin-4-yl)benzoic acid.
Siqueira, D. +4 more
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Competitive interfacial adsorption of blood proteins
Il Farmaco, 2003The competitive adsorption of blood proteins is of great importance for the treatment of thrombosis using a colloidal drug delivery system. The aim of this study is to investigate competitive adsorption of albumin (BSA) and human immunoglobulin G (HIgG) against fibrinogen (Fb).
N O, Sahin, D J, Burgess
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Competitive Adsorption of Phosphate and Arsenate on Goethite
Environmental Science & Technology, 2001The competitive adsorption of phosphate and arsenate on goethite was investigated to better understand the bonding mechanisms for the two ions. The anions were added both simultaneously and sequentially. When added simultaneously, the two ions were adsorbed about equally, with the total surface coverage being slightly greater than for either ion alone.
Hongshao, Z., Stanforth, R.
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Competitive Adsorption of Cd and Dyes to Kaolinite
Clays and Clay Minerals, 2006AbstractThe competitive adsorption to kaolinite between Cd(II) and four polyaromatic dyes (9-aminoacridine, 3,6-diaminoacridine, azure A and safranin O) was studied in 5 mM KNO3 at 25°C. Under these conditions, Cd adsorbs to the silica face of kaolinite between about pH 4 and 6.5, but at higher pH, adsorbed Cd is progressively relocated to the crystal ...
Johnson, Bruce. +2 more
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Carbonate adsorption on goethite in competition with phosphate
Journal of Colloid and Interface Science, 2007Competitive interaction of carbonate and phosphate on goethite has been studied quantitatively. Both anions are omnipresent in soils, sediments, and other natural systems. The PO4-CO3 interaction has been studied in binary goethite systems containing 0-0.5 M (bi)carbonate, showing the change in the phosphate concentration as a function of pH, goethite ...
Rahnemaie, R. +2 more
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Phosphate and sulfate adsorption on goethite: Single anion and competitive adsorption
Geochimica et Cosmochimica Acta, 1997Abstract The adsorption of phosphate and sulfate on goethite is studied individually and in combination at solution concentrations of phosphate ranging from 10 −8 to 10 −4 M and of sulfate ranging from 10 −5 to 10 −3 M. For single anion adsorption the influence of pH, ionic strength, and anion:goethite ratio was determined.
Geelhoed, J.S. +2 more
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Geochimica et Cosmochimica Acta, 1996
Different organic compounds or fractions of natural organic matter (NOM) show different adsorption affinities (K) and capacities (qm) on mineral surfaces. We hypothesize that these different organic compounds or fractions compete for adsorption when surface adsorption sites are limited.
Baohua Gu +3 more
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Different organic compounds or fractions of natural organic matter (NOM) show different adsorption affinities (K) and capacities (qm) on mineral surfaces. We hypothesize that these different organic compounds or fractions compete for adsorption when surface adsorption sites are limited.
Baohua Gu +3 more
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Compensation effect associated with multisite adsorption and competition for adsorption
Bulletin des Sociétés Chimiques Belges, 1979AbstractAccording to a model of “landing site” for chemisorption of alkanes on metal in presence of H2, previously published, the hydrocarbon adsorption rate is proportional to a function G of the H coverage (ΘH). The observed variations with H2 pressure and temperature range of the temperature factor affecting the adsorption rate of CH4 and C2H6 may ...
L. Degols +3 more
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Random copolymer adsorption. II. Competitive and displacement adsorption
Macromolecules, 1989Etude de l'adsorption de copolymeres (styrene-methacrylate de methyle) et des homopolymeres a partir de solutions dans le trichloroethylene sur la silice par spectrometrie FT-IR. Adsorption preferentielle des chaines de copolymere et de polymethacrylate par rapport au PS et les copolymeres riches en styrene.
Masami Kawaguchi +3 more
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