| Popis: |
In the present work some characteristic properties of aqueous solutions of biological macromolecules are presented. — Experimental results (obtained by means of rheological measurements, ultrasonic techniques, elastic and quasi-elastic light scattering and neutron scattering) reveal the presence of long-ranged structures exhibiting a thixotropic behavior. Such structures, built-up gradually in the course of time, consist of clusters of macromolecules regularly spaced. Moreover, macromolecules inside the cluster show the same ordering on a smaller scale. Occurrence of such thixotropic structure considerably modifies the properties of the solvent (water). |
