Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Universal dynamics of coarsening during polymer-polymer thin-film spinodal dewetting kinetics

Journal Article · · Physical Review E
 [1];  [2];  [3];  [3];  [3];  [4]
  1. Argonne National Lab. (ANL), Argonne, IL (United States); Northern Illinois Univ., DeKalb, IL (United States)
  2. Northern Illinois Univ., DeKalb, IL (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. McGill Univ., Montreal, QC (Canada)
The dewetting dynamics of a supported bilayer polymer thin film on a solid substrate is investigated using grazing incidence x-ray photon correlation spectroscopy. We find that the top layer dewets via the spinodal mechanism. The kinetics of the dewetting is studied by monitoring the time evolution of the surface diffuse x-ray scattering intensity. We study the time evolution of fluctuations about the average surface structure by measuring the two-time x-ray intensity fluctuation correlation functions. Using these two-time correlation functions we quantify the crossover from early-time diffusive dynamics to hydrodynamics. The early diffusive regime satisfies dynamic universality. The two-time correlation functions also quantify the onset of hydrodynamic effects. The hydrodynamic regime is observed during the spinodal dewetting process as these interactions are not screened.
Research Organization:
Argonne National Laboratory (ANL)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1768854
Journal Information:
Physical Review E, Journal Name: Physical Review E Journal Issue: 3 Vol. 102; ISSN 2470-0045
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (45)

Röntgenkleinwinkelstreuung an kolloiden Systemen Asymptotisches Verhalten der Streukurven journal July 1962
Dynamic correlation of fluctuations during spinodal decomposition journal September 1980
Interface morphologies in liquid/liquid dewetting journal May 2011
A review of X-ray intensity fluctuation spectroscopy journal June 2008
Inertial effects in three-dimensional spinodal decomposition of a symmetric binary fluid mixture: a lattice Boltzmann study journal August 2001
Unstable thin polymer films: rupture and dewetting processes journal May 1993
Liquid/liquid dewetting journal December 1993
The interface between two strongly incompatible polymers: interfacial broadening and roughening near Tg journal November 1991
Effect of an Interactive Surface on the Equilibrium Contact Angles in Bilayer Polymer Films journal March 2000
Dynamics of Rims and the Onset of Spinodal Dewetting at Liquid/Liquid Interfaces journal February 1999
A novel coarsening mechanism of droplets in immiscible fluid mixtures journal June 2015
Impact of energy dissipation on interface shapes and on rates for dewetting from liquid substrates journal September 2018
Possible mechanism for the spontaneous rupture of thin, free liquid films journal January 1966
Phase Separation by Spinodal Decomposition in Isotropic Systems journal January 1965
Viscoelastic phase separation journal March 2000
Interfacial dynamics in 3D binary fluid demixing: animation studies * journal January 2001
Late stages of spinodal decomposition in binary mixtures journal August 1979
Effect of inertia on droplet growth in a fluid journal February 1985
Spinodal decomposition patterns in an isodensity critical binary fluid: Direct-visualization and light-scattering analyses journal November 1987
Speckle from phase-ordering systems journal December 1997
Evolution of speckle during spinodal decomposition journal November 1999
Kinetic evolution of unmixing in an AlLi alloy using x-ray intensity fluctuation spectroscopy journal February 2001
Observation of a low-viscosity interface between immiscible polymer layers journal July 2006
Direct Measurement of Microstructural Avalanches during the Martensitic Transition of Cobalt Using Coherent X-Ray Scattering journal June 2011
Evidence for the Influence of Hydrodynamics in a Phase-Separating Fluid journal August 1978
Dewetting of thin polymer films journal January 1992
Scaling behavior of two-time correlations in a twisted nematic liquid crystal journal January 1993
Dewetting at the Liquid-Liquid Interface journal February 1996
New Hydrodynamic Mechanism for Drop Coarsening journal April 1996
Dimensional Crossover in the Phase Separation Kinetics of Thin Polymer Blend Films journal June 1996
Breakdown of Scale Invariance in the Coarsening of Phase-Separating Binary Fluids journal February 1998
Spinodal Dewetting of Thin Polymer Films journal August 1998
Interfacial Instability Driven by Dispersive Forces: The Early Stages of Spinodal Dewetting of a Thin Polymer Film on a Polymer Substrate journal December 1998
Coherent X-Ray Study of Fluctuations during Domain Coarsening journal December 1998
3D Spinodal Decomposition in the Inertial Regime journal July 1999
Dewetting Patterns and Molecular Forces: A Reconciliation journal June 2001
Dewetting of Highly Elastic Thin Polymer Films journal October 2001
X-Ray Intensity Fluctuation Spectroscopy Studies on Phase-Ordering Systems journal February 2005
Switching Layer Stability in a Polymer Bilayer by Thickness Variation journal June 2007
Dewetting in immiscible polymer bilayer films journal June 2017
Drying of solids wetted by thin liquid films journal September 1990
The timescale of spinodal dewetting at a polymer/polymer interface journal May 2002
Resonantly enhanced off-specular X-ray scattering from polymer/polymer interfaces⋆ journal July 2005
1/f Noise and Turbulence from a Self-Similar Decay of Fluctuation journal May 1985
Confinement-induced screening of hydrodynamic interactions and spinodal decomposition: Multiscale simulations of colloid-polymer mixtures journal November 2012

Similar Records

Dewetting in immiscible polymer bilayer films
Journal Article · Sun Jun 18 20:00:00 EDT 2017 · Physical Review Materials · OSTI ID:1433057

Dewetting: Film Rupture by Nucleation in the Spinodal Regime
Journal Article · Mon Jul 02 00:00:00 EDT 2001 · Physical Review Letters · OSTI ID:40204748

Dynamics of polymer bilayer films.
Journal Article · Tue Nov 14 23:00:00 EST 2006 · J. Non-Cryst. Solids · OSTI ID:915328

Related Subjects