Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2005-08-28
Physics
Condensed Matter
Soft Condensed Matter
4 pages, 4 figures, submitted for publication
Scientific paper
We assess the relative importance of spatial congestion and lowered temperature in the slowing dynamics of supercooled glycerol near the glass transition. We independently vary both volume, V, and temperature, T, by applying high pressure and monitor the dynamics by measuring the dielectric susceptibility. Our results demonstrate that both variables are control variables of comparable importance. However, a generalization of the concept of fragility of a glass-former shows that the dynamics are quantitatively more sensitive to fractional changes in V than T. We identify a connection between the fragility and a recently proposed density-temperature scaling which indicates that this conclusion holds for other liquids and polymers.
Menon Narayanan
Win Kyaw Zin
No associations
LandOfFree
The glass transition of glycerol in the volume-temperature plane does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The glass transition of glycerol in the volume-temperature plane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The glass transition of glycerol in the volume-temperature plane will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-187142