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A topologically driven glass in ring polymers
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Michieletto, Davide and Turner, Matthew S. (2016) A topologically driven glass in ring polymers. Proceedings of the National Academy of Sciences of the United States of America, 113 (19). pp. 5195-5200. 201520665. doi:10.1073/pnas.1520665113 ISSN 0027-8424.
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Official URL: http://dx.doi.org/10.1073/pnas.1520665113
Abstract
The static and dynamic properties of ring polymers in concentrated solutions remains one of the last deep unsolved questions in polymer physics. At the same time, the nature of the glass transition in polymeric systems is also not well understood. In this work, we study a novel glass transition in systems made of circular polymers by exploiting the topological constraints that are conjectured to populate concentrated solutions of rings. We show that such rings strongly interpenetrate through one another, generating an extensive network of topological interactions that dramatically affects their dynamics. We show that a kinetically arrested state can be induced by randomly pinning a small fraction of the rings. This occurs well above the classical glass transition temperature at which microscopic mobility is lost. Our work both demonstrates the existence of long-lived inter-ring penetrations and realizes a novel, topologically induced, glass transition.
| Item Type: | Journal Article | ||||||||
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| Subjects: | Q Science > QC Physics | ||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||
| Library of Congress Subject Headings (LCSH): | Glass transition temperature, Ring-opening polymerization, Topology | ||||||||
| Journal or Publication Title: | Proceedings of the National Academy of Sciences of the United States of America | ||||||||
| Publisher: | National Academy of Sciences | ||||||||
| ISSN: | 0027-8424 | ||||||||
| Official Date: | 10 May 2016 | ||||||||
| Dates: |
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| Volume: | 113 | ||||||||
| Number: | 19 | ||||||||
| Page Range: | pp. 5195-5200 | ||||||||
| Article Number: | 201520665 | ||||||||
| DOI: | 10.1073/pnas.1520665113 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||
| Date of first compliant deposit: | 27 April 2016 | ||||||||
| Date of first compliant Open Access: | 27 April 2016 | ||||||||
| Funder: | Engineering and Physical Sciences Research Council (EPSRC), Science Research Investment Fund (SRIF) | ||||||||
| Grant number: | EP/E501311 (EPSRC), EP/I005439/1 (EPSRC) | ||||||||
| Adapted As: | |||||||||
| Related URLs: |
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