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Dewetting dynamics in miscible polymer-polymer thin film mixtures
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10.1063/1.2737043
/content/aip/journal/jcp/126/22/10.1063/1.2737043
http://aip.metastore.ingenta.com/content/aip/journal/jcp/126/22/10.1063/1.2737043

Figures

Image of FIG. 1.
FIG. 1.

The hole radius as a function of time and film thickness is shown for the (a) PS films and (b) the TMPC/ PS film mixtures.

Image of FIG. 2.
FIG. 2.

The hole radius as a function of time and mixture composition is shown for films with thickness .

Image of FIG. 3.
FIG. 3.

The initial linear velocity is plotted as a function of film thickness and shown to decrease with increasing TMPC concentration.

Image of FIG. 4.
FIG. 4.

The slip extrapolation length calculated from Eq. (4) is plotted as a function of TMPC concentration.

Image of FIG. 5.
FIG. 5.

The viscosity is shown to decrease relative to its thick film values for each composition. The viscosity at was chosen as the normalizing value since TMPC films did not readily dewet above this thickness.

Image of FIG. 6.
FIG. 6.

The values of obtained from the reduction in viscosity via the WLF equation are shown to agree adequately with the values of from spectroscopic ellipsometry measurements. The solid line is a fit of equation PS data from Pham (Ref. 75). The constants used were , , and .

Image of FIG. 7.
FIG. 7.

[(a)–(d)]: The rim profiles are shown as a function of anneal time and distance from the contact line, , for a (a) , PS film, (b) , TMPC/ PS film, (c) , TMPC/ PS film, and (d) , TMPC/ PS film.

Tables

Generic image for table
Table I.

The values of the experimentally measured and calculated ratio of the dewetting velocities are compared. The ratios of the relevant parameters affecting the dewetting velocity according to Eq. (3) are shown.

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/content/aip/journal/jcp/126/22/10.1063/1.2737043
2007-06-13
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Dewetting dynamics in miscible polymer-polymer thin film mixtures
http://aip.metastore.ingenta.com/content/aip/journal/jcp/126/22/10.1063/1.2737043
10.1063/1.2737043
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