Glass transition measurements on heterogeneous surfaces

Year: 2001

Authors: Dinelli F., Buenviaje C., Overney R.M.

Autors Affiliation: Department of Chemical Engineering, University of Washington, Benson Hall, Box 351750 Seattle, WA, United States

Abstract: The local glass transition temperature (T-g) of heterogeneous polymer surfaces has been successfully determined by lateral force microscopy (LFM) on the submicron-nanometer scale. This paper addresses interfacial confinement effects in thin films of blends and emulsions from polystyrene (PS), poly(butylmethacrylate)(PBMA) and poly(methylmethacrylate)(PMMA). The paper addresses the difficulty of thermal rheological experiments with a microscopic scanning technique, and introduces an in-situ calibration method.

Journal/Review: THIN SOLID FILMS

Volume: 396 (1-2)      Pages from: 138  to: 144

More Information: DMR96324235. American Chemical Society Petroleum Research Fund, ACS PRF. – The authors would like to thank the Petroleum Research Fund, the Shell Foundation Faculty Career Fund, and the NSF MRSEC (DMR96324235) for their financial support. We would also like to thank the group of M. Rafailovich and J. Sokolov for useful discussions.
KeyWords: Atomic force microscopy (AFM); Calorimetry; Emulsions; Glass transition temperature (T-g); Polymers: Blends; Surface analysis; Calorimetry; Tribology; Nanorheology; Polystyrenes; Rheology; Surface structure; Tribology, Lateral force microscopy (LFM); Scanning force microscopy (SFM)
DOI: 10.1016/S0040-6090(01)01190-7

Citations: 19
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