Abstract
The sedimentation of dissolved macromolecules is analyzed in both the regions of very dilute solution and in semidilute regime employing the fractal aggregate model of macromolecular coils and blobs. The macromolecules entering the overlapping region are represented by more compact aggregates than that modeling the individual macromolecule of the same mass and fractal dimension. This regularity is confirmed by analyzing the hydrodynamic behavior of several polymer–solvent systems in a wide interval of fractal dimension including the polymers dissolved in both the theta and real solvents. The reduced hydrodynamic volume of macromolecules is about 0.3–0.5 of that of the individual macromolecule. This well corresponds with the literature data obtained by measurement of the reduction of the static correlation length with concentration and those determined by dielectric study of the end-to-end distance.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
