Effective Charge on Polymer Colloids Obtained Using a Renormalization Model.
Static light scattering has been used to study the electrostatic interaction between colloidal particles. Experiments were carried out using a latex with a very small diameter, allowing structure determination at high particle concentration. The obtained effective charge characterizing this interaction is found to be smaller than the bare charge determined from titration. A renormalization model connecting both values has been used. The agreement between the renormalized charge and that obtained from scattering data seems to point out that this model operates well. Copyright 1998 Academic Press.
Departamento de Física Aplicada, Universidad de Granada, Granada, 18071-E, Spain
M
Quesada-Pérez
J
Callejas-Fernández
R
Hidalgo-Álvarez