Showing papers in "Journal of Colloid and Interface Science in 1984"

TL;DR: In this paper, the authors compared oleophobic adsorbed monolayers of several long chain compounds and steroid derivatives produced on flat solid substrates by spontaneous adsorption from organic solutions with Langmuir-Blodgett (LB) transferred on identical substrates from the water-air interface.

TL;DR: In this paper, the attractive force-law between two hydrophobic surfaces in aqueous solutions has been derived from total force measurements on monolayer coated mica surfaces.

TL;DR: In this paper, the total force between curved sheets of muscovite mica was measured in a range of concentrations of Mg2+, Ca2+, Sr2+, and Ba2+ chloride solutions as a function of separation.

TL;DR: In this article, it was shown that the repulsive hydration force is not purely monotonic, but has an oscillatory component superimposed on it which is particularly pronounced at separations below about 1 nm.

TL;DR: A critical salt concentration (CSC) was found in the water sensitivity of Berea sandstone as discussed by the authors, which was determined by core flood experiments in conjunction with particle analysis of core effluent samples.

TL;DR: In this article, the structure of the microemulsions prior to polymerization and of the final latexes was studied by elastic and quasielastic light scattering, ultracentrifugation, and viscometry experiments.

TL;DR: Microelectrophoretic measurements have been used to predict the optimum pH and ionic strength requirements for their complex coacervation and thus to maximize the amount of coacervate formed, and experimental data on the effect of pH and added salt on the coACervate volumes of acid- Processed gelatin and acacia and alkali-processed gelatin

TL;DR: In this paper, the Hofmeister series was used to compare the changes in cloud point produced by electrolytes with a common ion at equal values of the concentration parameter ∑ mz, individual ions were assigned cloud point shift values Δ.

TL;DR: In this paper, the influence of physicochemical factors such as temperature, pH of solution, monomer concentration, type and concentration of electrolyte, stirring rate and acidifying agent on the resultant particle size, and size distribution of poly(butyl-2-cyanoacrylate) nanoparticles was investigated.

TL;DR: In this article, an attempt of estimation of C 1 and C 2 capacities of the compact layer and distribution of potentials within the electrical double layer at the TiO 2 (anatase)-electrolyte interface is presented taking into consideration the potentiometric titration, adsorption of swamping electrolyte ions and electrokinetic data for this system.

TL;DR: In this paper, the authors examined the sedimentation rate, the clarification and the height of the sedimented bed in connection with some operative conditions (stirring), some physicochemical measurements (adsorption isotherms, electrokinetic potential), and the characteristics of the flocculant (M w, cationicity).

TL;DR: In this paper, a correlation has been observed between cation size, structural microporosity, and bulk secondary structure in monovalent cation effects on the bulk structure and surface properties of the A3PW 12O40 and A3PMo12O40 heteropoly systems.

TL;DR: In this article, the secondary minimum flocculation of charge stabilized latex by nonadsorbed soluble polymer is extended to include the effects of latex particle size and soluble polymer concentration, and the results also can be rationalized by the DLVO model.

TL;DR: In this article, the conditions under which synergism in effectiveness of surface tension reduction will exist at the critical micelle concentration (CMC) in binary mixtures of surfactants are derived, using non-ideal solution theory.

TL;DR: In this article, Fourier transform infrared spectroscopy was used to study the adsorption of silane coupling agents on high-surface-area silica and E-glass fiber surfaces.

TL;DR: In this article, a simple model was developed to describe the probability of adhesion by polymer bridging between colliding particles, based on the assumptions that adsorbed polymer is randomly distributed over the particle surfaces but that interacting particles have complete freedom to reorient themselves into configurations favorable to adhesion.

TL;DR: In this article, the molecular interaction parameters for mixed monolayer and mixed micelle formation, βσ and βM, were determined for these systems using nonideal solution theory.

TL;DR: In this paper, a surface energetic criterion of biocompatibility of foreign surfaces is suggested based on the twin considerations of minimizing the thermodynamic driving force for the adsorption of blood components as well as maintaining a mechanically stable blood-biomaterial interface.

TL;DR: In this article, the zeta-potentials for particles of several solids in each of a series of organic liquids were measured and interpreted as a measure of the electron donor properties of the solid surface.

TL;DR: In this paper, the surface tension at the aqueous solution/air interface has been measured for eight surface active substances at 298.15°K under atmospheric pressure, and it has been found that each surface tension versus concentration curve has a distinct break at a relatively low concentration and a relatively high surface tension.

TL;DR: In this paper, the authors investigated the kinetics of crystallization of HAP and FAP under constant composition conditions in which the supersaturation was maintained constant during the crystallization reactions.

TL;DR: In this article, the capacity of the innermost layer C1 for magnetite suspended in KNO3 solutions has been obtained in the temperature range 30-80°C from acid-base titration data.

TL;DR: In this paper, the average porosity of a particulate bed is shown to be principally a function of particle size, shape, and state of aggregation, and formulas are developed which give the average specific sediment volume as a function for height and bed compressibility.

TL;DR: In this article, the molar solubilization ratio of seven organic molecules in three different surfactant solutions (cetyl pyridinium chloride, dodecyl ammonium chloride (DIC), ammonium sulfate surfactants, and sodium dodecayl sulfate (SDS) at 0.1 M concentration and at 25°C) have been measured.

TL;DR: In this paper, the morphological parameters of aggregates of some nonionic surfactants in apolar media are described according to the chemical nature of the oil, and the effect of temperature is also considered.

TL;DR: In this paper, the electrical conductivity of a porous plug composed of closely packed dielectric spheres in an electrolyte was derived and the radius of the spheres was assumed to be much larger than the double-layer thickness, and the spheres were taken to have a uniform δ-potential.

TL;DR: In this paper, the behavior of Na-kaolinite suspensions in the presence of high-molecular-weight polyacrylamide is investigated experimentally, and three different domains are found: at low concentrations the polymer acts as a stabilizer, at intermediate concentrations enhanced flocculation is observed, and at high concentration the suspension is again stabilized.