Collect. Czech. Chem. Commun. 1984, 49, 2586-2592

Structure of polyelectrolyte solutions, SAXS study of poly(aspartic acid)

Josef Pleštila, Drahomíra Hlavatáb, Yurii Miaczeslavovich Ostanevicha and Vladimír Saudekb

a Joint Institute of Nuclear Research, Laboratory of Neutron Physics, Dubna, USSR
b Institute of Macromolecular Chemistry, Czechoslovak Academy of Sciences, 162 06 Prague 6, Czechoslovakia


The position of the maximum on small-angle scattering curves of solutions of poly(aspartic acid) neutralized with NaOH is proportional to the third root of concentration. The course of the interference function and the characteristic interchain distance were determined. The data may be interpreted using a model of ordered chains and assuming that the chain length per one monomer unit is smaller than would correspond to the all trans-conformation.