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Use of One‐Parameter Models for the Assessment of Particle Interactions by photon correlation spectroscopy
Author(s) -
Finsy Robert
Publication year - 1990
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/ppsc.19900070114
Subject(s) - dispersion (optics) , spectroscopy , particle (ecology) , diffusion , photon , statistical physics , fluorescence correlation spectroscopy , physics , materials science , molecular physics , chemical physics , chemistry , optics , thermodynamics , quantum mechanics , fluorescence , oceanography , geology
Abstract The use of very simple one‐parameter models of particle interactions for the analysis of the concentration dependence of the collective diffusion coefficient as determined by photon correlation spectroscopy is illustrated by measurements on two different systems. In one, a micro‐emulsion, attractive interactions are dominant whereas in the other, a silica dispersion, repulsive interactions play the major role.