Transient electric light scattering by large strongly elongated disperse particles
| Autor: | Maria Stoimenova, S Sokerov |
|---|---|
| Rok vydání: | 1974 |
| Předmět: |
Physics
Condensed matter physics Scattering Rotational diffusion Surfaces Coatings and Films Electronic Optical and Magnetic Materials Biomaterials symbols.namesake Dipole Colloid and Surface Chemistry Classical mechanics symbols Particle Electrophoretic light scattering Scattering theory Particle size Rayleigh scattering |
| Zdroj: | Journal of Colloid and Interface Science. 46:94-100 |
| ISSN: | 0021-9797 |
| DOI: | 10.1016/0021-9797(74)90028-9 |
| Popis: | The theory of transient electric light scattering is extended to larger particles, fulfilling the restrictions of the Rayleigh-Debye-Gans approximation. The equations derived are valid for rigid, strongly elongated, monodisperse particles, orientated under the simultaneous action of both their permanent and induced dipole moments. The equation for the rise of the effect gives the possibility the particle electric moments to be determined. The equation describing the decay of electric light scattering differs from the one given by Wippler. It offers a method for obtaining the particle rotational diffusion coefficient. For small particles the equations derived coincide with the formulas of Nishinari-Yoshioka, Benoit, and Tinoco, describing transient electric birefringence. The dependence of the coefficient on particle size in the formulas presented shows the limits of application of the small particle theory. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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