Anomalous Confinement Slows Surface Fluctuations of Star Polymer Melt Films
Abstract
The unusually large film thickness at which confinement effects manifest themselves in surface fluctuations of unentangled four-arm star polymers has been defined using film thicknesses from 10Rg to 107Rg. For 15k four-arm star polystyrene (SPS) confinement appears at a thickness between 112 nm (40Rg) and 72 nm (26Rg), which is remarkably larger than the thicknesses at which confinement appears for unentangled 6k linear (<15 nm, <7Rg) and 6k and 14k cyclic (24 nm and 22 nm, respectively) polystyrenes. Data for 15k star films can be rationalized using a two-layer model with a 17 nm (6Rg) thick highly viscous layer at the substrate, which is significantly thicker than the 1Rg thick “irreversibly adsorbed” layer. For a 29 nm (10Rg) thick film more striking confinement occurs due to the combined influence of both interfaces. 2 Here, these results underscore the extraordinary role long-chain branching plays in dictating surface fluctuations of thin films.
- Authors:
-
- The Univ. of Akron, Akron, OH (United States)
- The Univ. of Akron, Akron, OH (United States); The Univ. of Chicago, Chicago, IL (United States); Argonne National Lab. (ANL), Lemont, IL (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- National Science Foundation (NSF); USDOE
- OSTI Identifier:
- 1465506
- Grant/Contract Number:
- AC02-06CH11357
- Resource Type:
- Accepted Manuscript
- Journal Name:
- ACS Macro Letters
- Additional Journal Information:
- Journal Volume: 7; Journal Issue: 7; Journal ID: ISSN 2161-1653
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Zhang, Fan, He, Qiming, Zhou, Yang, Narayanan, Suresh, Wang, Chao, Vogt, Bryan D., and Foster, Mark D. Anomalous Confinement Slows Surface Fluctuations of Star Polymer Melt Films. United States: N. p., 2018.
Web. doi:10.1021/acsmacrolett.8b00278.
Zhang, Fan, He, Qiming, Zhou, Yang, Narayanan, Suresh, Wang, Chao, Vogt, Bryan D., & Foster, Mark D. Anomalous Confinement Slows Surface Fluctuations of Star Polymer Melt Films. United States. https://doi.org/10.1021/acsmacrolett.8b00278
Zhang, Fan, He, Qiming, Zhou, Yang, Narayanan, Suresh, Wang, Chao, Vogt, Bryan D., and Foster, Mark D. Mon .
"Anomalous Confinement Slows Surface Fluctuations of Star Polymer Melt Films". United States. https://doi.org/10.1021/acsmacrolett.8b00278. https://www.osti.gov/servlets/purl/1465506.
@article{osti_1465506,
title = {Anomalous Confinement Slows Surface Fluctuations of Star Polymer Melt Films},
author = {Zhang, Fan and He, Qiming and Zhou, Yang and Narayanan, Suresh and Wang, Chao and Vogt, Bryan D. and Foster, Mark D.},
abstractNote = {The unusually large film thickness at which confinement effects manifest themselves in surface fluctuations of unentangled four-arm star polymers has been defined using film thicknesses from 10Rg to 107Rg. For 15k four-arm star polystyrene (SPS) confinement appears at a thickness between 112 nm (40Rg) and 72 nm (26Rg), which is remarkably larger than the thicknesses at which confinement appears for unentangled 6k linear (<15 nm, <7Rg) and 6k and 14k cyclic (24 nm and 22 nm, respectively) polystyrenes. Data for 15k star films can be rationalized using a two-layer model with a 17 nm (6Rg) thick highly viscous layer at the substrate, which is significantly thicker than the 1Rg thick “irreversibly adsorbed” layer. For a 29 nm (10Rg) thick film more striking confinement occurs due to the combined influence of both interfaces. 2 Here, these results underscore the extraordinary role long-chain branching plays in dictating surface fluctuations of thin films.},
doi = {10.1021/acsmacrolett.8b00278},
journal = {ACS Macro Letters},
number = 7,
volume = 7,
place = {United States},
year = {Mon Jun 25 00:00:00 EDT 2018},
month = {Mon Jun 25 00:00:00 EDT 2018}
}
Web of Science
Figures / Tables:
Works referenced in this record:
Adhesion-Induced Instability Patterns in Thin Confined Elastic Film
journal, April 2003
- Ghatak, Animangsu; Chaudhury, Manoj K.
- Langmuir, Vol. 19, Issue 7
Thermal Fluctuations Limit the Adhesive Strength of Compliant Solids
journal, June 2006
- Tang, Tian; Jagota, Anand; Chaudhury, Manoj K.
- The Journal of Adhesion, Vol. 82, Issue 7
Surface Dynamics of Polymer Films
journal, February 2003
- Kim, Hyunjung; Rühm, A.; Lurio, L. B.
- Physical Review Letters, Vol. 90, Issue 6
The spectrum of surface waves on viscoelastic liquids of arbitrary depth
journal, August 1998
- Jäckle, Josef
- Journal of Physics: Condensed Matter, Vol. 10, Issue 32
Surfaces of Strongly Confined Polymer Thin Films Studied by X-Ray Scattering
journal, July 1999
- Wang, J.; Tolan, M.; Seeck, O. H.
- Physical Review Letters, Vol. 83, Issue 3
Evidence for Viscoelastic Effects in Surface Capillary Waves of Molten Polymer Films
journal, May 2007
- Jiang, Zhang; Kim, Hyunjung; Jiao, X.
- Physical Review Letters, Vol. 98, Issue 22
Dynamics of Surface Fluctuations on Macrocyclic Melts
journal, July 2012
- Wang, Shih-Fan; Jiang, Zhang; Narayanan, Suresh
- Macromolecules, Vol. 45, Issue 15
Confinement Effects with Molten Thin Cyclic Polystyrene Films
journal, August 2016
- He, Qiming; Narayanan, Suresh; Wu, David T.
- ACS Macro Letters, Vol. 5, Issue 9
Anomalous Surface Relaxations of Branched-Polymer Melts
journal, August 2013
- Wang, Shih-fan; Yang, Sewoo; Lee, Jaesik
- Physical Review Letters, Vol. 111, Issue 6
Polymer Film Surface Fluctuation Dynamics in the Limit of Very Dense Branching
journal, April 2013
- Liu, Boxi; Narayanan, Suresh; Wu, David T.
- Macromolecules, Vol. 46, Issue 8
Free Surface Relaxations of Star-Shaped Polymer Films
journal, November 2017
- Glynos, Emmanouil; Johnson, Kyle J.; Frieberg, Bradley
- Physical Review Letters, Vol. 119, Issue 22
Affinity of Polystyrene Films to Hydrogen-Passivated Silicon and Its Relevance to the T g of the Films
journal, October 2009
- Fujii, Yoshihisa; Yang, Zhaohui; Leach, Jessica
- Macromolecules, Vol. 42, Issue 19
The lifetime of the deviations from bulk behaviour in polymers confined at the nanoscale
journal, March 2011
- Napolitano, Simone; Wübbenhorst, Michael
- Nature Communications, Vol. 2, Issue 1
Revealed Architectures of Adsorbed Polymer Chains at Solid-Polymer Melt Interfaces
journal, December 2012
- Gin, Peter; Jiang, Naisheng; Liang, Chen
- Physical Review Letters, Vol. 109, Issue 26
Formation Mechanism of High-Density, Flattened Polymer Nanolayers Adsorbed on Planar Solids
journal, April 2014
- Jiang, Naisheng; Shang, Jun; Di, Xiaoyu
- Macromolecules, Vol. 47, Issue 8
Stability of Polymer Ultrathin Films (<7 nm) Made by a Top-Down Approach
journal, July 2015
- Bal, Jayanta Kumar; Beuvier, Thomas; Unni, Aparna Beena
- ACS Nano, Vol. 9, Issue 8
Direct Measurement of Glass Transition Temperature in Exposed and Buried Adsorbed Polymer Nanolayers
journal, June 2016
- Burroughs, Mary J.; Napolitano, Simone; Cangialosi, Daniele
- Macromolecules, Vol. 49, Issue 12
Modifying Surface Fluctuations of Polymer Melt Films with Substrate Modification
journal, August 2017
- Zhou, Yang; He, Qiming; Zhang, Fan
- ACS Macro Letters, Vol. 6, Issue 9
Irreversibility and Polymer Adsorption
journal, February 2003
- O’Shaughnessy, Ben; Vavylonis, Dimitrios
- Physical Review Letters, Vol. 90, Issue 5
Kinetics of Irreversible Chain Adsorption
journal, May 2014
- Housmans, Caroline; Sferrazza, Michele; Napolitano, Simone
- Macromolecules, Vol. 47, Issue 10
Mechanisms of Polymer Adsorption onto Solid Substrates
journal, August 2017
- Simavilla, David Nieto; Huang, Weide; Vandestrick, Philippe
- ACS Macro Letters, Vol. 6, Issue 9
Impact of an Irreversibly Adsorbed Layer on Local Viscosity of Nanoconfined Polymer Melts
journal, November 2011
- Koga, Tadanori; Jiang, N.; Gin, P.
- Physical Review Letters, Vol. 107, Issue 22
Untangling the Effects of Chain Rigidity on the Structure and Dynamics of Strongly Adsorbed Polymer Melts
journal, June 2015
- Carrillo, Jan-Michael Y.; Cheng, Shiwang; Kumar, Rajeev
- Macromolecules, Vol. 48, Issue 12
Surface enrichment driven by polymer topology
journal, May 2016
- Pellicane, Giuseppe; Megnidio-Tchoukouegno, Mireille; Mola, Genene T.
- Physical Review E, Vol. 93, Issue 5
Distribution of Glass Transition Temperatures in Free-Standing, Nanoconfined Polystyrene Films: A Test of de Gennes’ Sliding Motion Mechanism
journal, June 2011
- Kim, Soyoung; Torkelson, John M.
- Macromolecules, Vol. 44, Issue 11
Stiffness of thin, supported polystyrene films: Free-surface, substrate, and confinement effects characterized via self-referencing fluorescence
journal, September 2016
- Askar, Shadid; Torkelson, John M.
- Polymer, Vol. 99
Surface Tension of Symmetric Star Polymer Melts
journal, July 2008
- Qian, Zhenyu; Minnikanti, Venkatachala S.; Sauer, Bryan B.
- Macromolecules, Vol. 41, Issue 13
Optimizing the Grafting Density of Tethered Chains to Alter the Local Glass Transition Temperature of Polystyrene near Silica Substrates: The Advantage of Mushrooms over Brushes
journal, January 2018
- Huang, Xinru; Roth, Connie B.
- ACS Macro Letters, Vol. 7, Issue 2
Altering surface fluctuations by blending tethered and untethered chains
journal, January 2017
- Lee, J. K.; Akgun, B.; Jiang, Z.
- Soft Matter, Vol. 13, Issue 44
Vitrification of Thin Polymer Films: From Linear Chain to Soft Colloid-like Behavior
journal, March 2015
- Glynos, Emmanouil; Frieberg, Bradley; Chremos, Alexandros
- Macromolecules, Vol. 48, Issue 7
Works referencing / citing this record:
A simulation study on the glass transition behavior and relevant segmental dynamics in free-standing polymer nanocomposite films
journal, January 2019
- Li, Shu-Jia; Qian, Hu-Jun; Lu, Zhong-Yuan
- Soft Matter, Vol. 15, Issue 22
Unexpected Molecular Weight Dependence to the Physical Aging of Thin Polystyrene Films Present at Ultra‐High Molecular Weights
journal, February 2019
- Thees, Michael F.; Roth, Connie B.
- Journal of Polymer Science Part B: Polymer Physics, Vol. 57, Issue 18
Figures / Tables found in this record: