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Particle sizing in highly turbid dispersions by Photon Density Wave spectroscopy
- Photon Density Wave (PDW) spectroscopy is presented as a fascinating technology for the independent determination of scattering (mu(s)’ and absorption (ita) properties of highly turbid liquid dispersions. The theory is reviewed introducing new expressions for the PDW coefficients k(I) and k(Phi). Furthermore, two models for dependent scattering, namely the hard sphere model in the Percus-Yevick Approximation (HSPYA) and the Yukawa model in the Mean Spherical Approximation (YMSA), are experimentally examined. On the basis of the HSPYA particle sizing is feasible in dispersions of high ionic strength. It is furthermore shown that in dialyzed dispersions or in technical copolymers with high particle charge only the YMSA allows for correct dilution-free particle sizing. (C) 2013 Elsevier Ltd. All rights reserved.
| Verfasserangaben: | Lena BresselORCiDGND, Roland HassORCiDGND, O. Reich |
|---|---|
| DOI: | https://doi.org/10.1016/j.jqsrt.2012.11.031 |
| ISSN: | 0022-4073 |
| Titel des übergeordneten Werks (Englisch): | JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER |
| Verlag: | PERGAMON-ELSEVIER SCIENCE LTD |
| Verlagsort: | OXFORD |
| Publikationstyp: | Wissenschaftlicher Artikel |
| Sprache: | Englisch |
| Jahr der Erstveröffentlichung: | 2013 |
| Erscheinungsjahr: | 2013 |
| Datum der Freischaltung: | 26.03.2017 |
| Freies Schlagwort / Tag: | Dependent light scattering; Multiple light scattering; Particle sizing; Percus-Yevick model; Photon Density Wave spectroscopy; Polymer dispersions; Yukawa model |
| Band: | 126 |
| Ausgabe: | 1 |
| Seitenanzahl: | 8 |
| Erste Seite: | 122 |
| Letzte Seite: | 129 |
| Fördernde Institution: | German Federal Ministry of Education and Research [03Z2AN12] |
