skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Modifying Surface Fluctuations of Polymer Melt Films with Substrate Modification

Journal Article · · ACS Macro Letters

Deposition of a plasma polymerized film on a silicon substrate substantially changes the fluctuations on the surface of a sufficiently thin, melt polystyrene (PS) film atop the substrate. Surface fluctuation relaxation times measured with X-ray photon correlation spectroscopy (XPCS) for ca. 4Rg thick melt films of 131 kg/mol linear PS on silicon and on a plasma polymer modified silicon wafer can both be described using a hydrodynamic continuum theory (HCT) that assumes the film is characterized throughout its depth by the bulk viscosity. However, when the film thickness is reduced to ~3Rg, confinement effects are evident. The surface fluctuations are slower than predicted using the HCT, and the confinement effect for the PS on silicon is larger than that for the PS on the plasma polymerized film. This deviation is thus due to a difference in the thicknesses of the strongly adsorbed layers at the substrate which are impacted by the substrate surface energy.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
USDOE Office of Science (SC); National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States); USDOC
Grant/Contract Number:
AC02-06CH11357; FA7000-14-2-20016; W911NF-09-1-0122
OSTI ID:
1439865
Journal Information:
ACS Macro Letters, Vol. 6, Issue 9; ISSN 2161-1653
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 10 works
Citation information provided by
Web of Science

References (38)

Thermal Fluctuations Limit the Adhesive Strength of Compliant Solids journal June 2006
Surface Dynamics of Polymer Films journal February 2003
Impact of an Irreversibly Adsorbed Layer on Local Viscosity of Nanoconfined Polymer Melts journal November 2011
Modulus, Confinement, and Temperature Effects on Surface Capillary Wave Dynamics in Bilayer Polymer Films Near the Glass Transition journal July 2012
Dynamics of Surface Fluctuations on Macrocyclic Melts journal July 2012
Anomalous Surface Relaxations of Branched-Polymer Melts journal August 2013
Polymer Film Surface Fluctuation Dynamics in the Limit of Very Dense Branching journal April 2013
X-ray Photon Correlation Spectroscopy Studies of Surfaces and Thin Films journal September 2014
Confinement Effects with Molten Thin Cyclic Polystyrene Films journal August 2016
Evidence for Viscoelastic Effects in Surface Capillary Waves of Molten Polymer Films journal May 2007
Entanglement Effects in Capillary Waves on Liquid Polymer Films journal December 2008
Thickness Induced Structural Changes in Polystyrene Films journal September 2008
The spectrum of surface waves on viscoelastic liquids of arbitrary depth journal August 1998
Surfaces of Strongly Confined Polymer Thin Films Studied by X-Ray Scattering journal July 1999
Affinity of Polystyrene Films to Hydrogen-Passivated Silicon and Its Relevance to the T g of the Films journal October 2009
The lifetime of the deviations from bulk behaviour in polymers confined at the nanoscale journal March 2011
Revealed Architectures of Adsorbed Polymer Chains at Solid-Polymer Melt Interfaces journal December 2012
Formation Mechanism of High-Density, Flattened Polymer Nanolayers Adsorbed on Planar Solids journal April 2014
Nanoscale adsorbed structures as a robust approach for tailoring polymer film stability journal January 2016
Stability of Polymer Ultrathin Films (<7 nm) Made by a Top-Down Approach journal July 2015
Solvent Assisted Rinsing: Stability/Instability of Ultrathin Polymer Residual Layer journal February 2016
Direct Measurement of Glass Transition Temperature in Exposed and Buried Adsorbed Polymer Nanolayers journal June 2016
Irreversible Adsorption of a Concentrated Polymer Solution journal January 1992
Glass transition of polymers in bulk, confined geometries, and near interfaces journal January 2017
How irreversible adsorption affects interfacial properties of polymers journal September 2017
Viscoelastic behavior of low molecular weight polystyrene journal February 1971
Effect of tethering on the surface dynamics of a thin polymer melt layer journal January 2016
X-ray and neutron reflectivity for the investigation of polymers journal January 1990
Viscosity of PMMA on Silica: Epitome of Systems with Strong Polymer–Substrate Interactions journal September 2013
Unexpected impact of irreversible adsorption on thermal expansion: Adsorbed layers are not that dead journal May 2017
Untangling the Effects of Chain Rigidity on the Structure and Dynamics of Strongly Adsorbed Polymer Melts journal June 2015
Kinetics of Irreversible Chain Adsorption journal May 2014
Correlation of molecular orientation with adhesion at polystyrene/solid interfaces journal September 2002
Structural properties of atactic polystyrene adsorbed onto solid surfaces journal November 2011
Chemical treatment effect of Si(111) surfaces in F‐based aqueous solutions journal November 1996
Probing Polymer/Polymer Interfaces journal June 2002
Molecular Structure of Polystyrene at Air/Polymer and Solid/Polymer Interfaces journal October 2000
Tuning surface wettability using single layered and hierarchically ordered arrays of spherical colloidal particles journal January 2013

Cited By (2)

Viscosity and fragility of confined polymer nanocomposites: a tale of two interfaces journal January 2019
Local viscoelasticity at resin-metal interface analyzed with spatial-decomposition formula for relaxation modulus journal September 2019

Similar Records

Self-affine surfaces of polymer brushes.
Journal Article · Tue Aug 21 00:00:00 EDT 2007 · Macromolecules · OSTI ID:1439865

Localization of excitons by molecular layer formation in a polymer film
Journal Article · Sat Oct 15 00:00:00 EDT 2005 · Physical Review. B, Condensed Matter and Materials Physics · OSTI ID:1439865

Anomalous Confinement Slows Surface Fluctuations of Star Polymer Melt Films
Journal Article · Mon Jun 25 00:00:00 EDT 2018 · ACS Macro Letters · OSTI ID:1439865