Effects of Linking Topology on the Shear Response of Connected Ring Polymers: Catenanes and Bonded Rings Flow Differently

Autor(en)

Reyhaneh A. Farimani, Zahra Ahmadian Dehaghani, Christos N. Likos, Mohammad Reza Ejtehadi

Abstrakt

We perform computer simulations of mechanically linked (poly[2]catenanes, PC) and chemically bonded (bonded rings, BR) pairs of self-avoiding ring polymers in steady shear. We find that BRs develop a novel motif, termed gradient tumbling, rotating around the gradient axis. For the PCs the rings are stretched and display another new pattern, termed slip tumbling. The dynamics of BRs is continuous and oscillatory, whereas that of PCs is intermittent between slip-tumbling attempts. Our findings demonstrate the interplay between topology and hydrodynamics in dilute solutions of connected polymers.

Organisation(en)

Computergestützte Physik und Physik der Weichen Materie

Externe Organisation(en)

Sharif University of Technology Tehran, Scuola Internazionale Superiore di Studi Avanzati

Journal

Physical Review Letters

Band

132

Anzahl der Seiten

7

ISSN

0031-9007

DOI

https://doi.org/10.48550/arXiv.2312.01374

Publikationsdatum

04-2024

Peer-reviewed

Ja

ÖFOS 2012

103015 Kondensierte Materie, 103029 Statistische Physik

ASJC Scopus Sachgebiete

Allgemeine Physik und Astronomie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/102223f2-a1e9-4d20-897d-0b1e41c9e04d