Results 251 to 260 of about 386,518 (277)

Interfacial properties of surfaction

2008
Surfactin, a lipopeptide produced by Bacillus subtilis, is characterized by a lactone bond. — Interfacial properties of surfactin were studied at w/a interface: spreading isotherms at 17.5o and 20.5°C were recorded as a function of subphase composition (water at two different acid pH, mono and divalent ions solutions at the same pH and ionic strength).
A. Gilardoni, G. Gabrielli
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Interfacial properties of coffee oils

Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2010
The liquid-liquid interfacial properties of coffee oils extracted from roasted coffee have been investigated for the first time. Oils from roasted coffee of different botanical species and geographical origins as well as from roasted coffee blends and decaffeinated roasted coffee were characterized.
M.Ferrari, F.Ravera, E.De Angelis, F. S.Liverani, L. Navarini   +4 more
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Active control of interfacial properties

Current Opinion in Colloid & Interface Science, 2000
Abstract Recent studies aimed at establishing principles for active control of the physicochemical properties of interfaces have made substantial progress towards demonstrating spatial and temporal control of interfacial properties of both liquids and solids.
Craig Rosslee, Nicholas L Abbott
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Interfacial properties of Morse fluids

Molecular Physics, 2007
The interfacial properties as reflected in the interfacial tension values and the density profile of Morse fluids has been studied. The parameter range is chosen to coincide with that describing the behaviour of solid metals. The interfacial tension has been found to follow Guggenheim's and MacLeod's relations. However, the constants, while independent
SINGH, JK, ADHIKARI, J, KWAK, SK
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Interfacial properties of xanthan gum

1992
Abstract The adsorption characteristics of xanthan gum onto a model substrate, i. e. monodisperse, spherical polystyrene latex, have been studied. Xanthan gum adsorbed onto the polystyrene latex from both aqueous and 0.5 M NaCl solutions and low affinity isotherms were obtained in the both cases. The configuration of the adsorbed polymer
S Takigami, P A.Williams, G O.Phillips
openaire   +1 more source

Liquid-crystalline polymers: interfacial properties

Faraday Discussions, 1994
Main-chain liquid-crystalline polymers (LCPs) in nematic media are ellipsoid-like objects. Long LCPs support hairpin defects. The elasticity of the major axis is then significantly weaker than that of the minor axis. Furthermore, the major axis is aligned with the nematic direction. These two traits give rise to novel interfacial behaviour of solutions
Avi Halperin, David R. M. Williams
openaire   +1 more source

Interfacial properties of hybrid nanomaterials

Pramana, 2005
A brief summary of our ongoing efforts to understand the surface properties of nanoparticles using fluorophores, namely pyrene alkanethiols, is presented. Excited state interactions were investigated by varying the length of the spacer group and the concentration of fluorophore.
Binil Itty Ipe, K. Yoosaf, K. George Thomas   +2 more
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Material Properties and Interfacial Friction

1991
The equations describing the thermal and mechanical events in the roll gap need to be supplemented with appropriate boundary and initial conditions. For the mechanical component these include the resistance to deformation of the metal to be rolled, the frictional forces at the roll-strip interface and the shape of the deformed contact surface ...
Maciej Pietrzyk, John G. Lenard
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Interfacial Properties of Phenothiazine Derivatives

Journal of Pharmaceutical Sciences, 1964
G, ZOGRAFI, D E, AUSLANDER, P L, LYTELL
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Interfacial properties of polyacrylamide solutions

Journal of Applied Polymer Science, 1999
Surface tension of the polyacrylamide solution was measured as a function of the polyacrylamide concentration (0–1000 gm/m3) and temperature (10–60°C). The static contact angles of the polyacrylamide solutions in the range of 0–1000 gm/m3 were reported on the polyvinyl chloride and Teflon substrates. Surface tension, static contact angle, and spreading
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