Communication: Evidence of dynamic heterogeneity in glassy polymer monolayers from interface microrheology measurements


Autoria(s): Kandar, AK; Bhattacharya, R; Basu, JK
Data(s)

21/08/2010

Resumo

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].

Formato

application/pdf

Identificador

http://eprints.iisc.ernet.in/32134/1/glassy.pdf

Kandar, AK and Bhattacharya, R and Basu, JK (2010) Communication: Evidence of dynamic heterogeneity in glassy polymer monolayers from interface microrheology measurements. In: Journal of Chemical Physics, 133 (7). 071102-1.

Publicador

American Institute of Physics

Relação

http://jcp.aip.org/resource/1/jcpsa6/v133/i7/p071102_s1

http://eprints.iisc.ernet.in/32134/

Palavras-Chave #Physics
Tipo

Journal Article

PeerReviewed