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Liquid-liquid transition in the molecular liquid triphenyl phosphite
Hajime Tanaka1, Rei Kurita, Hiroshi Mataki
1Institute of Industrial Science, University of Tokyo, Meguro-ku, Tokyo 153-8505, Japan.
Abstract:
We found both nucleation-growth-type and spinodal-decomposition-type transformation from one liquid state to another in a "molecular liquid," triphenyl phosphite (TPP). Binodal and spinodal temperatures of this transition at ambient pressure were determined by the characteristics of morphological evolution, domain-growth kinetics, and rheological evolution. Furthermore, a distinct thermal signature of the glass transition of a second liquid was also detected in addition to that of an ordinary liquid. These findings strongly suggest the existence of a liquid-liquid transition; more precisely, a transformation of one supercooled liquid to a glassy state of another liquid, in TPP.