Structural effects of polydispersity in charged colloidal dispersions

Structure of interacting aggregates of silicananoparticles in a polymer matrix: small-angle scattering and reverse Monte Carlo simulations

“…It is plausible because of the strong scattering peak in I(q), which will be discussed with the data. Strong peaks are usually associated with ordered and thus not too polydisperse domain sizes [31].…”

Adsorption of Anions on the Surface of Charge-Free Latex Particles as Revealed by Turbidimetric Measurements

“…In general, information about the interaction between latex particles may be derived from scattering experiments giving the structure factor of the suspension (16). By comparison of the latter quantity with the theory of simple liquids (17) the effective pair potential of the latex particles may be deduced in a quantitative manner (18). Thus, the effective surface charge of polystyrene latex particles stabilized by sulfate groups could be derived from light scattering measurements (19).…”

“…If the size polydispersity is small (cf. the discussion of this problem by D'Aguanno and Klein (18)), these data may be evaluated to give an effective diameter of interaction of the particles. This parameter provides a direct measure for the strength of repulsive interaction of the particles and can be related to their surface charge and the ionic strength in the system (20 -23).…”

Scattering Functions of Core−Shell-Struct ured Hard Spheres with Schulz-Distributed Radii

“…This prescription is very flexible in that it can be applied for essentially any interaction potential, size distribution, distribution of scattering contrast, and closure relation. [7][8][9][11][12][13] In practice, however, full numerical solutions of this sort are usually too time-consuming, especially given that a rather large number of components is often required for modeling scattering data extending to wave vectors beyond the first correlation peak. Consequently one may want to turn to simpler approaches for analysis.…”

“…6,7 One common approach is to approximate the system by a fewcomponent, effective mixture 8,9 (for a different approach, see Lado 10 ). The coupled Ornstein-Zernike integral equations can then be solved numerically, yielding the partial structure factors of the mixture for an approximate closure relation, interaction potential, and mixture composition.…”