1. Thermal transition measurements of polymer thin films by modulated nanoindentation.
- Author
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Sills, Scott, Fong, Hanson, Buenviaje, Cynthia, Sarikaya, Mehmet, and Overney, René M.
- Subjects
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THIN films , *SOLID state electronics , *GLASS transition temperature , *SCANNING probe microscopy , *MICROSCOPY , *CALORIMETRY - Abstract
A modulated nanoindentation technique has been developed for thermal transition analysis of polymer thin films. The procedure was applied to glass transition measurements of poly-t-butylacrylate, with results that compare well with shear-modulated force microscopy and differential scanning calorimetry. The advantages of the modulated indentation technique are twofold: (i) it provides in situ experimental access to material properties in nanoscopically confined geometries, and (ii) it incorporates well-defined indenter geometries, which provide a means for quantitative thermorheological analysis that is not available with conventional scanning probe microscopy. The experimental procedure and critical test parameters are detailed. [ABSTRACT FROM AUTHOR]
- Published
- 2005
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