Showing papers in "Advances in Colloid and Interface Science in 1994"

TL;DR: In this article, the effect of repulsive electrostatic interaction among adsorbing particles was investigated and it was shown that these interactions diminish both the particle adsorption rate and the maximum surface concentration of particles forming "random" monolayers.

TL;DR: In this paper, the effects of colloidal particles on the rheological properties of fluid-fluid interfaces and on emulsion stability were reviewed and the effect of colloid-laden interfaces on the performance of drop-drop coalescence was investigated.

TL;DR: The application of quasi-elastic light scattering for the determination of particle size distributions is reviewed in this article, where the basic principles and assumptions on which the method relies are presented on an introductory level.

TL;DR: In this paper, the authors discuss optical reflectometry as a tool for studying adsorption from dilute solutions and elaborate on the kind of reflectometry where the reflecting substrate carries a thin dielectric film on which the adsorbption takes place.

TL;DR: In this article, the theoretical basis of adsorption kinetics is presented, taking into consideration different adorption mechanisms, and specific experimental conditions, such as liquid flow and interfacial area changes.

TL;DR: A review of recent advances in the fields of organic and bioorganic reactions in micro-emulsions can be found in this paper, where the authors discuss the most widely used enzymes and reactions have been performed in different types of microemulsion systems.

TL;DR: In this paper, the authors analyse the phase behavior using the flexible surface model and argue that the strong temperature dependence is caused by the fact that the monolayer spontaneous curvature decreases strongly with increasing temperature.

TL;DR: In this article, the authors investigated the effect of the contact angle of the air-solution interface with the solid surface on foam stability and showed that foam stability drops with contact angles approaching 90°, while the effectiveness of cylindrical hydrophobic rods in rupturing single soap films rises with contact angle approaching 90 degrees.

TL;DR: In this paper, a generalized approach to understand and prediction of solid-liquid separation methods based on the measurement of fundamental material properties is reviewed and applied to a variety of thickening and filtration processes.

TL;DR: Theoretical models regarding the thermodynamic aspects of contact angle hysteresis are reviewed in this paper, and their contribution to improving the understanding of the local nature of the equilibrium condition regarding the contact angle is discussed.

TL;DR: The behavior of polymers adsorbed on a single surface or bridging two surfaces is fairly well understood when thermodynamic equilibrium conditions prevail as mentioned in this paper, but in practice many situations are encountered in which polymer adsorption is not thermodynamically but kinetically controlled.

TL;DR: In this paper, the relationship between the properties of surfactant monolayers at oil-water interfaces and the phase behaviour in bulk of mixtures of oil + water + surfactants is discussed.

TL;DR: In this article, the applicability of the Gaudin-Miaw-Spedden theory which states that molecular and sheet crystals, if their structure is controlled by the residual bonds across their basal planes, is confirmed.

TL;DR: In this paper, the authors compared the mechanical and thermodynamic approaches to the theory of the general curved interfaces and found that these two approaches are in a good agreement, that they are complementary to each other and represent the two parts of a selfconsistent theory.

TL;DR: In this article, the light scattering properties of polymer colloids made of polytetrafluoroethylene with added copolymers are described in some detail, including the effects of polycrystallinity, of optical polydispersity, and of interparticle interactions.

TL;DR: In this paper, the spread of thin, axisymmetric, nonvolatile, Newtonian liquid drops over a dry, smooth, flat solid surface is considered both theoretically and experimentally in the case of complete wetting.

TL;DR: In this article, the authors review some recent results on the kinetics of bimolecular chemical reactions, such as binary, recombination and trapping reactions, with participation of polymer chains.

TL;DR: In this paper, a novel sol-gel nanocomposite material is introduced which was produced by silica solgel processes in micro-emulsion organogels, where the oxid gel forms an interpenetrating network with the gelatin maze.

TL;DR: In this article, a simplified hydrodynamic model is presented where the role of the surface elasticity is discussed, and experimental results for the velocity of circular horizontal soap films are presented, for both dilute and concentrated surfactant solutions.

TL;DR: In this article, the authors describe the capillary rise along a vertical thin fiber and give some predictions about the dynamics of the rise, and present an experiment, in a situation of complete wetting, where a fibre is brought into contact with a reservoir of silicone oil, and the dynamic contact angle is measured, from 90° (just at the contact) to 0° (the equilibrium position).

TL;DR: In this article, exact analytic expressions for the potential distribution and the potential energy of the electrostatic interaction for the system of two dissimilar spheres in an electrolyte solution on the basis of the linearized Poisson Boltzmann equation without recourse to Derjaguin's approximation were obtained.

TL;DR: In this paper, the authors focus on the results of recent experimental advances in rheological properties of silica suspensions in polymer solutions in terms of polymer adsorption phenomena and present a review of these results.

TL;DR: In this article, expressions for the viscous drag and disjoining forces upon a foreign spherical body at a solid-liquid interface are developed under general conditions, with clearly denned boundary conditions, and for various situations (planar, concave or convex interface, a smooth particle, a particle with coating or absorption).

TL;DR: In this paper, the rheological properties of suspensions flocculated by polymer bridging are studied as a function of adsorption affinity of polymer for the particle surfaces, and the scaling analysis shows that the critical exponent is 4.0 for network constructed by irreversible bridges and 1.8 for highly elastic network by reversible bridges.

TL;DR: In this article, the specific linear energy for two-dimensional two-phase systems with a contact line can have a positive value only, and for complex capillary systems with bulk, surface and linear phases the linear energy can be either positive or negative.

TL;DR: In this article, the authors used a stripwise, heterogeneous wall to evaluate numerically the effect of line tension upon the magnitude of the contact line contortions and the degree of contact angle hysteresis.

TL;DR: In this paper, the Gibbs phase rule is used to determine the number of degrees of freedom of a single phase system, including both moderately and highly-curved surface phases and line phases.

TL;DR: In this paper, the surface amination of poly (acrylonitrile) by ammonia plasma treatment has been studied, and two other surface modification techniques have been investigated, the plasma chemical decomposition of an amino group containing chemical (tris-(2-aminoethyl)amine) onto the polymer surface and the surface reduction by lithium aluminium hydride.

TL;DR: A submitted manuscript is the author's version of the article upon submission and before peer-review as discussed by the authors, and the final published version features the final layout of the paper including the volume, issue and page numbers.