Threading-Induced Dynamical Transition in Tadpole-Shaped Polymers

Autor(en)

Angelo Rosa, Jan Smrek, Matthew S. Turner, Davide Michieletto

Abstrakt

The relationship between polymer topology and bulk Theology remains a key question in soft matter physics. Architecture-specific constraints (or threadings) are thought to control the dynamics of ring polymers in ring-linear blends, which thus affects the viscosity to range between that of the pure rings and a value larger, but still comparable to, that of the pure linear melt. Here we consider qualitatively different systems of linear and ring polymers, fused together in "chimeric" architectures. The simplest example of this family is a "tadpole"-shaped polymer, a single ring fused to the end of a single linear chain. We show that polymers with this architecture display a threading-induced dynamical transition that substantially slows chain relaxation. Our findings shed light on how threadings control dynamics and may inform design principles for chimeric polymers with topologically tunable bulk theological properties.

Organisation(en)

Computergestützte Physik und Physik der Weichen Materie

Externe Organisation(en)

Scuola Internazionale Superiore di Studi Avanzati, University of Warwick, University of Edinburgh, Kyoto University, University of Bath

Journal

ACS Macro Letters

Band

9

Seiten

743-748

Anzahl der Seiten

6

ISSN

2161-1653

DOI

https://doi.org/10.1021/acsmacrolett.0c00197

Publikationsdatum

05-2020

Peer-reviewed

Ja

ÖFOS 2012

103023 Polymerphysik

Schlagwörter

ASJC Scopus Sachgebiete

Materials Chemistry, Polymers and Plastics, Inorganic Chemistry, Organic Chemistry

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/3100fc54-c90e-46c5-837a-97a74a038df7