Abstract
Hydrodynamic and conformational properties of hyperbranched poly(amino acids) based on lysine have been studied by static and dynamic light scattering, velocity sedimentation, translational diffusion, and viscometry in dilute aqueous-saline solutions (0.2 M NaCl). The effects of synthesis conditions of hyperbranched poly(amino acids), modification of their end groups by histidine fragments, and incorporation of diacylated lysine residues between branching points of oligomers and polymers composed of lysine and glutamic acid on the molecular mass characteristics of the hyperbranched polymers have been ascertained. The hydrodynamic properties of the hyperbranched poly(amino acids) differ appreciably from the behavior of both linear polylysine and lysine dendrimers due to conformational features of their macromolecules.
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