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Sedimentation equilibrium studies of synthetic polyelectrolytes by means of interference optical methods

  • Polymers, Colloids, And Supramolecular Systems
  • Conference paper
  • First Online:
Analytical Ultracentrifugation IV

Part of the book series: Progress in Colloid & Polymer Science ((PROGCOLLOID,volume 107))

Abstract

Synthetic quaternary ammonium polyelectrolytes have been investigated in aqueous 0.5 M NaCl solution by analytical ultracentrifugation using the “low speed” sedimentation equilibrium technique with interference detection. Lower molecular mass poly(diallyldimethylammonium chloride) (poly-DADMAC)-samples (M W<105 g/mol) and poly(methacryloyloxyethylbenzyl-dimethylammonium chloride) (poly-MADAMBQ) exhibit “ideal” sedimentation equilibrium behavior. Linear log [η] vs. log M W — and log s O vs. log M W relations could be derived for poly-MADAMBQ. For higher molecular mass poly-DADMAC (M W>105 g/mol) and DADMAC-acrylamide copolymers a “non-ideal” solution behavior was observed resulting in deviations between molecular masses M w obtained by sedimentation equilibrium and by elastic light scattering. The experimental conditions desired for the molecular characterization of synthetic polyelectrolytes by sedimentation equilibrium are discussed.

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Author information

Authors and Affiliations

  1. Fraunhofer-Institute of Applied Polymer Research, Kantstraße 55, 14513, Teltow, Germany

    E. Görnitz, M. Hahn & W. Jaeger

  2. Max-Planck-Institute of Colloid and Surface Science, Kantstraße 55, 14513, Teltow, Germany

    H. Dautzenberg

Authors
  1. E. Görnitz
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  2. M. Hahn
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  3. W. Jaeger
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  4. H. Dautzenberg
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Corresponding author

Correspondence to E. Görnitz .

Editor information

R. Jaenicke H. Durchschlag

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© 1997 Dr. Dietrich Steinkopff Verlag GmbH & Co. KG

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Görnitz, E., Hahn, M., Jaeger, W., Dautzenberg, H. (1997). Sedimentation equilibrium studies of synthetic polyelectrolytes by means of interference optical methods. In: Jaenicke, R., Durchschlag, H. (eds) Analytical Ultracentrifugation IV. Progress in Colloid & Polymer Science, vol 107. Steinkopff. https://doi.org/10.1007/BFb0118024

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  • DOI: https://doi.org/10.1007/BFb0118024

  • Published:

  • Publisher Name: Steinkopff

  • Print ISBN: 978-3-7985-1106-4

  • Online ISBN: 978-3-7985-1656-4

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