Origin of Life pp 277-284 | Cite as

Potentiometric Titration Behavior of Polyamino Acids Prepared by Thermal Polycondensation

  • Etsuo Kokufuta
  • Kaoru Harada
Conference paper


Potentiometric titrations of thermally prepared poly-amino acids were carried out at different ionic strengths. The intrinsic dissociation constants of carboxyl groups or amino groups in the polymers were evaluated by the curves of the apparent dissociation constant against the degree of dissociation and the Henderson-Hasselbalch plots. The ratio of α- and ω-linkages of amino acid residues was also evaluated by the analysis of the titration data.


Ionic Strength Potentiometric Titration Titration Curve Titration Data Monomeric Acid 
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Copyright information

© D. Reidel Publishing Company 1981

Authors and Affiliations

  • Etsuo Kokufuta
    • 1
  • Kaoru Harada
    • 2
  1. 1.Institute of Applied BiochemistryThe University of TsukubaIbarakiJapan
  2. 2.Department of ChemistryThe University of TsukubaIbarakiJapan

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