Transition from metastability to instability in a binary-liquid mixture
- 17 December 1990
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 65 (25), 3136-3139
- https://doi.org/10.1103/physrevlett.65.3136
Abstract
In a binary mixture of oligomers of styrene and ε-caprolactone, we have studied a transition from metastability to instability by changing a quench depth systematically under an off-critical quench condition. The concentration distribution function turns out to be a good fingerprint for determining whether phase separation is nucleation-growth type or spinodal-decomposition type. We also demonstrate clear morphological and kinetice evidence of a diffuse metastable-unstable transition or crossover phenomena theoretically predicted for the system with a finite-range interaction.Keywords
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