Free Surface Relaxations of Star-Shaped Polymer Films

Glynos, Emmanouil; Johnson, Kyle J.; Frieberg, Bradley; Chremos, Alexandros; Narayanan, Suresh; Sakellariou, Georgios; Green, Peter F.

doi:10.1103/PhysRevLett.119.227801

Title: Free Surface Relaxations of Star-Shaped Polymer Films

Journal Article · Wed Nov 01 00:00:00 EDT 2017 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.119.227801· OSTI ID:1414375

Glynos, Emmanouil; Johnson, Kyle J.; Frieberg, Bradley; Chremos, Alexandros; Narayanan, Suresh; Sakellariou, Georgios; Green, Peter F.

The surface relaxation dynamics of supported star-shaped polymer thin films are shown to be slower than the bulk, persisting up to temperatures at least 50 K above the bulk glass transition temperature Tgbulk. This behavior, exhibited by star-shaped polystyrenes with functionality f=8 arms and molecular weights per arm Marm

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Research Organization:: National Renewable Energy Laboratory (NREL), Golden, CO (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

DOE Contract Number:: AC36-08GO28308

OSTI ID:: 1414375

Report Number(s):: NREL/JA-5A00-70685; PRLTAO

Journal Information:: Physical Review Letters, Vol. 119, Issue 22; ISSN 0031-9007

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

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Cited By (4)

Unexpected Molecular Weight Dependence to the Physical Aging of Thin Polystyrene Films Present at Ultra‐High Molecular Weights Thees, Michael F.; Roth, Connie B. Journal of Polymer Science Part B: Polymer Physics, Vol. 57, Issue 18 https://doi.org/10.1002/polb.24797	journal	February 2019
Influence of polymer topology on crystallization in thin films Giuntoli, Andrea; Chremos, Alexandros; Douglas, Jack F. The Journal of Chemical Physics, Vol. 152, Issue 4 https://doi.org/10.1063/1.5134983	journal	January 2020
Dynamic heterogeneity and collective motion in star polymer melts Fan, Jinpeng; Emamy, Hamed; Chremos, Alexandros The Journal of Chemical Physics, Vol. 152, Issue 5 https://doi.org/10.1063/1.5135731	journal	February 2020
Substrate Roughness Speeds Up Segmental Dynamics of Thin Polymer Films Panagopoulou, Anna; Rodríguez-Tinoco, Cristian; White, Ronald P. Physical Review Letters, Vol. 124, Issue 2 https://doi.org/10.1103/physrevlett.124.027802	journal	January 2020

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