By viscometry data processing some of the approaches to the determination of the values of the chitosan intrinsic viscosity were analyzed. It is shown that the features of chitosan research are that in the process of dissolution it becomes the polyelectrolyte, that leads to some difficulties in assessing the intrinsic viscosity. It is claimed that by using of Irzhak and Baranov method we can adequately estimate the values of intrinsic viscosity, and, hence, the volume occupied by chitosan macromolecules, which in turn is determined by the degree of protonation of the chitosan macromolecule in a solution of acetic acid.
хитозан, полиэлектролиты, вискозиметрия, конформация, chitosan, polyelectrolytes, viscometry, conformation
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