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Threading-induced dynamical transition in tadpole-shaped polymers
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Rosa, Angelo, Smrek, Jan, Turner, Matthew S. and Michieletto, Davide (2020) Threading-induced dynamical transition in tadpole-shaped polymers. ACS Macro Letters, 9 (5). pp. 743-748. doi:10.1021/acsmacrolett.0c00197 ISSN 2161-1653.
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Official URL: https://doi.org/10.1021/acsmacrolett.0c00197
Abstract
The relationship between polymer topology and bulk rheology 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 rheological properties.
Item Type: | Journal Article | ||||||||||||
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Subjects: | Q Science > QC Physics | ||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||||||
SWORD Depositor: | Library Publications Router | ||||||||||||
Library of Congress Subject Headings (LCSH): | Polymers -- Rheology, Polymers, Fluid dynamics | ||||||||||||
Journal or Publication Title: | ACS Macro Letters | ||||||||||||
Publisher: | American Chemical Society | ||||||||||||
ISSN: | 2161-1653 | ||||||||||||
Official Date: | 19 May 2020 | ||||||||||||
Dates: |
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Volume: | 9 | ||||||||||||
Number: | 5 | ||||||||||||
Page Range: | pp. 743-748 | ||||||||||||
DOI: | 10.1021/acsmacrolett.0c00197 | ||||||||||||
Status: | Peer Reviewed | ||||||||||||
Publication Status: | Published | ||||||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||||||
Date of first compliant deposit: | 18 November 2021 | ||||||||||||
Date of first compliant Open Access: | 18 November 2021 | ||||||||||||
RIOXX Funder/Project Grant: |
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