Discussing the Relationship between the Static and Dynamic Light Scattering
| dc.creator | Sun, Yong | |
| dc.date | 2004-10-11 | |
| dc.date | 2004-12-08 | |
| dc.date.accessioned | 2026-07-07T05:52:51Z | |
| dc.date.available | 2026-07-07T05:52:51Z | |
| dc.description | Both the static $(SLS) $ and dynamic $(DLS) $ light scattering techniques are used to obtain the size information from the scattered intensity, but the static radius $R_{s}$ and the apparent hydrodynamic radius $R_{h,app}$ are different. In this paper, the relationship between SLS and DLS is discussed using dilute water dispersions of two different homogenous spherical particles, polystyrene latexes and poly($N$-isopropylacrylamide) microgels, with a simple assumption that the hydrodynamic radius $R_{h}$ is in proportion to the static radius $R_{s}$, when Rayleigh-Gans-Debye approximation is valid. With the assistance of the simulated data, the apparent hydrodynamic radius $R_{h,app}$ has been discussed. The results show that the apparent hydrodynamic radius is different with the mean hydrodynamic radius of particles and is a composite size obtained from averaging the term $\exp (-q^{2}Dτ) $ in the static size distribution $G(R_{s}) $ with the weight $R_{s}^{6}P(q,R_{s}) $. | |
| dc.identifier | https://arxiv.org/abs/physics/0410064 | |
| dc.identifier | http://arxiv.org/abs/physics/0410064 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/86456 | |
| dc.subject | Chemical Physics | |
| dc.title | Discussing the Relationship between the Static and Dynamic Light Scattering | |
| dc.type | text |