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Cooling Rate Dependent Ellipsometry Measurements to Determine the Dynamics of Thin Glassy Films
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JoVE 杂志 化学
Cooling Rate Dependent Ellipsometry Measurements to Determine the Dynamics of Thin Glassy Films

Cooling Rate Dependent Ellipsometry Measurements to Determine the Dynamics of Thin Glassy Films

DOI:
10.3791/53499-v

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09:32 min

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January 26, 2016

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,
1Department of Chemistry,University of Pennsylvania

Chapters

  • 00:05Title
  • 00:56Film Preparation and Film Thickness Determination
  • 04:06Cooling Rate Dependent Glass Transition Temperature Measurements
  • 06:59Results: Finding the Glass Transition Temperature and Analyzing the Average Film Dynamics of 110 nm Polystyrene
  • 08:28Conclusion

Summary

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Here, we present a protocol for cooling rate dependent ellipsometry experiments, which can determine the glass transition temperature (Tg), average dynamics, fragility and the expansion coefficient of the super-cooled liquid and glass for a variety of glassy materials.

Tags

EllipsometryThin FilmsGlass Transition TemperaturePolymer GlassesSpin CoatingFilm ThicknessEllipsometric Angles

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