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Manipulating the properties of stable organic glasses using kinetic facilitation
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10.1063/1.4772594
/content/aip/journal/jcp/138/12/10.1063/1.4772594
http://aip.metastore.ingenta.com/content/aip/journal/jcp/138/12/10.1063/1.4772594
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Figures

Image of FIG. 1.
FIG. 1.

d-IMC concentration profiles for a stable glass (SG) before and after annealing at 318 K (Tg + 3) for (a) 38 000 s and (b) 80 000 s. The samples were prepared by vapor deposition at 265 K (0.85 Tg). The total thickness of these samples was 850 ± 10 nm. A growth front initiates at the free surface and propagates at a constant velocity into the bulk (as indicated by the arrows). The bar at the bottom of each panel represents the initial structure of the sample.

Image of FIG. 2.
FIG. 2.

d-IMC concentration profiles for several glasses before and after annealing at 319 K (Tg + 4) for 16 000 s. The samples were prepared by vapor deposition and consisted of stable glass (SG) and ordinary glass layers (OG). Stable glasses were deposited at 265 K (0.85 Tg) and ordinary glasses at 315 K (Tg). A growth front initiates at the free surface and propagates at a constant velocity into the bulk (indicated by the arrows). Additionally, growth fronts independent of the free surface are created at the interfaces between ordinary and stable glasses.

Image of FIG. 3.
FIG. 3.

d-IMC concentration profiles for a stable glass before and after annealing at 326 K (Tg + 11) for 2700 s. (a) Uncapped IMC stable glass. (b) IMC stable glass capped with TNB stable glass. The samples were prepared by vapor deposition at 0.85 Tg. For the annealed uncapped sample (red symbols in (a)) the transformation to the liquid state initiates by a growth front starting at the free surface and propagating into the sample (indicated by the arrow). In contrast, for the annealed capped sample (red symbols in (b)) no growth front is observed.

Image of FIG. 4.
FIG. 4.

d-IMC concentration profiles for a stable glass before and after annealing at 326 K (Tg + 11) for (a) 0 s, (b) 2700 s, (c) 4050 s, (d) 5340 s, and (e) 9000 s. The samples were prepared by vapor deposition at 0.85 Tg. The IMC stable glass layer was capped on both sides by a TNB stable glass. The total thickness of these samples was 875 ± 10 nm. The free surface growth front is apparently eliminated by capping with TNB. At long times, growth fronts at the protio-deuterio interfaces (2,4,5) start the transformation to the liquid state.

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/content/aip/journal/jcp/138/12/10.1063/1.4772594
2013-01-03
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Manipulating the properties of stable organic glasses using kinetic facilitation
http://aip.metastore.ingenta.com/content/aip/journal/jcp/138/12/10.1063/1.4772594
10.1063/1.4772594
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