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Three-dimensional numerical simulations of lamellar structure via two-step surface-directed phase separation in polymer blend films
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10.1063/1.2938370
/content/aip/journal/jcp/128/22/10.1063/1.2938370
http://aip.metastore.ingenta.com/content/aip/journal/jcp/128/22/10.1063/1.2938370
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

3D patterns showing the development of the polymer morphology in the first quench depth following , , and . The color bar indicates the concentration of the preferential component for the surface.

Image of FIG. 2.
FIG. 2.

3D patterns showing the development of the polymer morphology during the second quench with , , , and . The corresponding isophase 3D images are listed at the bottom. The color bar and the coordination are the same as those of Fig. 1.

Image of FIG. 3.
FIG. 3.

3D patterns showing the development of the polymer morphology during the second quench with , , and . The coordination is the same as that of Fig. 1. (up) and (down) 0.06.

Image of FIG. 4.
FIG. 4.

Plots of laterally averaged profiles against for different times with , , , and . (a) , (b) 50, (c) 100, and (d) 500.

Image of FIG. 5.
FIG. 5.

Isophase 3D images showing the development of the polymer morphology during the second quench in the off-critical condition where , , and . From top to bottom: , 50, 100, and 500. (a) , and (b) 0.6. The coordination is the same as that of Fig. 1.

Image of FIG. 6.
FIG. 6.

Plots of laterally average profiles against at different times where , , and . [(a)–(d)] and [(e)–(h)] . [(a) and (e)] , [(b) and (f)] 50, [(c and g)] 100, and [(d) and (h)] 500.

Image of FIG. 7.
FIG. 7.

3D patterns showing the relative chemical potential with and at . (a) and (b) 0.6. The coordination is the same as that of Fig. 1.

Image of FIG. 8.
FIG. 8.

A detailed dynamic process of lamellar growth following two-step surface-directed spinodal decomposition with , , , and . The corresponding parallel domain between and 66 at each time is listed at bottom. The coordination is the same as that of Fig. 1. (a) , (b) 600, (c) 750, (d) 900, and (e) 1200.

Image of FIG. 9.
FIG. 9.

The schematic diagram showing two basic dynamic processes of lamellar formation.

Image of FIG. 10.
FIG. 10.

Plots of average lamellar thickness against logarithmic second quench time with , , and at the initial and metaphase stages. The slope of the line in this figure is 1.

Image of FIG. 11.
FIG. 11.

Plot of wetting layer thickness against second quench time in a log-log scale with , , , and .

Image of FIG. 12.
FIG. 12.

The 3D phase morphology with different noise strengths following the second quench depth at where , , and .

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/content/aip/journal/jcp/128/22/10.1063/1.2938370
2008-06-12
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Three-dimensional numerical simulations of lamellar structure via two-step surface-directed phase separation in polymer blend films
http://aip.metastore.ingenta.com/content/aip/journal/jcp/128/22/10.1063/1.2938370
10.1063/1.2938370
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