Dynamics of semiflexible polymer solutions in the tightly entangled concentration regime

Tassieri, M. (2017) Dynamics of semiflexible polymer solutions in the tightly entangled concentration regime. Macromolecules, 50(14), pp. 5611-5618. (doi:10.1021/acs.macromol.7b01024)

[img]
Preview
Text
144017.pdf - Accepted Version

907kB

Abstract

I corroborate an important experimental evidence reported by Schuldt et al. [ Phys. Rev. Lett. 2016, 117, 197801] revealing the incapability of the current theoretical framework to fully describe the dynamics of semiflexible polymer solutions in the tightly entangled concentration regime. These results have been endorsed here by means of previously published, but overlooked, data by Tassieri et al. [ Phys. Rev. Lett. 2008, 101, 198301; Biophys. J. 2008, 94, 2170]. The ensemble of information provides a strong evidence that the scaling law of the plateau modulus as a function of polymer’s concentration and persistence length, i.e., G0 ∝ cαLpβ, should have both the exponents positive, in contrast with all the existing predictions converging on similar values of α > 0 and β < 0—hence the need of new theoretical models able to better interpret the contribution of the polymer bending rigidity to the viscoelastic properties of the polymer network.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Tassieri, Dr Manlio
Authors: Tassieri, M.
College/School:College of Science and Engineering > School of Engineering > Biomedical Engineering
Journal Name:Macromolecules
Publisher:American Chemical Society
ISSN:0024-9297
ISSN (Online):1520-5835
Published Online:05 July 2017
Copyright Holders:Copyright © 2017 American Chemical Society
First Published:First published in Macromolecules 50(14):5611-5618
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

University Staff: Request a correction | Enlighten Editors: Update this record