| Issue |
Europhys. Lett.
Volume 76, Number 4, November 2006
|
|
|---|---|---|
| Page(s) | 630 - 636 | |
| Section | Condensed matter: structural, mechanical and thermal properties | |
| DOI | https://doi.org/10.1209/epl/i2006-10309-0 | |
| Published online | 20 October 2006 | |
Aging and history effects in solvent-induced glass transition of polymer films
Université Pierre et Marie Curie-Paris 6, Laboratoire FAST and CNRS, Laboratoire FAST, Bât. 502, Campus Universitaire F-91405 Orsay Cedex, France
Received:
24
July
2006
Accepted:
19
September
2006
Aging and history in glassy polymer films are investigated in the frame of solvent-induced glass transition. By decreasing the pressure of a solvent vapour surrounding a polymer film, the film goes from the rubbery swollen state to the glassy dry state. Gravimetry experiments in a pressure-controlled chamber were performed to analyse aging behaviour for different kinds of solvent vapour pressure cycles. Results are utterly different from those obtained with equivalent temperature cycles: no marked memory effect can be shown; very important hysteresis at small activity as well as complex behaviour of the melting time according to the quench amplitude have been observed. This behaviour may be related to the coupled evolution of two variables, the free volume and the solvent fraction.
PACS: 64.70.Pf – Glass transitions / 61.25.Hq – Macromolecular and polymer solutions; polymer melts; swelling / 68.43.Mn – Adsorption/desorption kinetics
© EDP Sciences, 2006
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.