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Proceedings Paper

Dynamic light scattering from strongly interacting multicomponent systems: salt-free polyelectrolyte solutions
Author(s): Marian Sedlak; Eric J. Amis; Cestmir Konak; Petr Stepanek
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Paper Abstract

Polyelectrolyte solutions exhibit unusual or unexpected properties in the limit of low salt concentrations. Consequently, theoretical treatment and interpretation of results obtained by various experimental techniques meet many difficulties. Application of photon correlation spectroscopy to this problem is discussed on the basis of numerous results obtained in a wide variety of experimental conditions (charge density on chains, concentration, molecular weight, temperature, dielectric permittivity of solvent). Linear flexible macromolecules, poly(methacrylic acid) and sodium polystyrene sulfonate were used as samples. The multicomponent character of the solution, i.e., the interaction between charged macromolecules and counterions, is shown to be very important. Experimental results are compared with existing (rather controversial) theoretical concepts.

Paper Details

Date Published: 1 June 1991
PDF: 12 pages
Proc. SPIE 1430, Photon Correlation Spectroscopy: Multicomponent Systems, (1 June 1991); doi: 10.1117/12.44168
Show Author Affiliations
Marian Sedlak, Univ. of Southern California (United States)
Eric J. Amis, Univ. of Southern California (United States)
Cestmir Konak, Institute of Macromolecular Chemistry (Czech Republic)
Petr Stepanek, Institute of Macromolecular Chemistry (Czech Republic)

Published in SPIE Proceedings Vol. 1430:
Photon Correlation Spectroscopy: Multicomponent Systems
Kenneth S. Schmitz, Editor(s)

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