scholarly journals Influence of bidisperse self-assembled monolayer structure on the slip boundary condition of thin polymer films

2017 ◽  
Vol 146 (20) ◽  
pp. 203326 ◽  
Author(s):  
Joshua D. McGraw ◽  
Mischa Klos ◽  
Antoine Bridet ◽  
Hendrik Hähl ◽  
Michael Paulus ◽  
...  
Keyword(s):  
Boundary Condition ◽  
Polymer Films ◽  
Slip Boundary Condition ◽  
Thin Polymer Films ◽  
Self Assembled Monolayer ◽  
Slip Boundary ◽  
Thin Polymer ◽  
Self Assembled

scholarly journals Slip-mediated dewetting of polymer microdroplets

2016 ◽  
Vol 113 (5) ◽  
pp. 1168-1173 ◽  
Author(s):  
Joshua D. McGraw ◽  
Tak Shing Chan ◽  
Simon Maurer ◽  
Thomas Salez ◽  
Michael Benzaquen ◽  
...  
Keyword(s):  
Boundary Condition ◽  
Contact Line ◽  
Stokes Equations ◽  
Slip Boundary Condition ◽  
Scaling Analysis ◽  
Self Assembled Monolayer ◽  
Spherical Cap ◽  
Force Microscopy ◽  
Navier Slip ◽  
Slip Boundary

Classical hydrodynamic models predict that infinite work is required to move a three-phase contact line, defined here as the line where a liquid/vapor interface intersects a solid surface. Assuming a slip boundary condition, in which the liquid slides against the solid, such an unphysical prediction is avoided. In this article, we present the results of experiments in which a contact line moves and where slip is a dominating and controllable factor. Spherical cap-shaped polystyrene microdroplets, with nonequilibrium contact angle, are placed on solid self-assembled monolayer coatings from which they dewet. The relaxation is monitored using in situ atomic force microscopy. We find that slip has a strong influence on the droplet evolutions, both on the transient nonspherical shapes and contact line dynamics. The observations are in agreement with scaling analysis and boundary element numerical integration of the governing Stokes equations, including a Navier slip boundary condition.

scholarly journals Influence of outer-layer finite-size effects on the dewetting dynamics of a thin polymer film embedded in an immiscible matrix

Soft Matter ◽  
2018 ◽  
Vol 14 (30) ◽  
pp. 6256-6263
Author(s):  
M. S. Chebil ◽  
J. D. McGraw ◽  
T. Salez ◽  
C. Sollogoub ◽  
G. Miquelard-Garnier
Keyword(s):  
Boundary Condition ◽  
Size Effects ◽  
Finite Size ◽  
Growth Dynamics ◽  
Slip Boundary Condition ◽  
Thin Polymer Film ◽  
Finite Size Effects ◽  
Slip Boundary ◽  
Thin Polymer ◽  
Hole Growth

Balancing capillary driving power and viscous dissipation with a no-slip boundary condition captures the hole growth dynamics in trilayer dewetting.

Sacrificial mica substrates influence the slip boundary condition of dewetting polymer films

Polymer ◽  
2015 ◽  
Vol 78 ◽  
pp. 202-207 ◽  
Author(s):  
S. Mostafa Sabzevari ◽  
Joshua D. McGraw ◽  
Karin Jacobs ◽  
Paula Wood–Adams
Keyword(s):  
Boundary Condition ◽  
Polymer Films ◽  
Slip Boundary Condition ◽  
Slip Boundary

Is the chain dynamics in thin polymer films isotropic ?

2000 ◽  
Vol 10 (PR7) ◽  
pp. Pr7-233-Pr7-237 ◽  
Author(s):  
S. Rivillon ◽  
P. Auroy ◽  
B. Deloche
Keyword(s):  
Polymer Films ◽  
Thin Polymer Films ◽  
Chain Dynamics ◽  
Thin Polymer

Reducing the сontact angle hysteresis of thin polymer films by oil impregnation in supercritical carbon dioxide

2021 ◽  
Vol 154 ◽  
pp. 106202
Author(s):  
Polina S. Kazaryan ◽  
Maria A. Agalakova ◽  
Elena P. Kharitonova ◽  
Marat O. Gallyamov ◽  
Mikhail S. Kondratenko
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Polymer Films ◽  
Thin Polymer Films ◽  
Thin Polymer ◽  
Oil Impregnation ◽  
Supercritical Carbon
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