Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 133, Issue 7, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3471584
Keywords
argon; fine structure; infrared spectra; intramolecular mechanics; krypton; neon; water
Funding
- DST
- CSIR
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We have developed a novel nanoparticle tracking based interface microrheology technique to perform in situ studies on confined complex fluids. To demonstrate the power of this technique, we show, for the first time, how in situ glass formation in polymers confined at air-water interface can be directly probed by monitoring variation of the mean square displacement of embedded nanoparticles as a function of surface density. We have further quantified the appearance of dynamic heterogeneity and hence vitrification in polymethyl methacrylate monolayers above a certain surface density, through the variation of non-Gaussian parameter of the probes. (C) 2010 American Institute of Physics. [doi:10.1063/1.3471584]
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