Slow regions percolate near glass transitionY. Yilmaz1, A. Erzan1, 2 and Ö. Pekcan1
1 Department of Physics, Faculty of Sciences and Letters, Istanbul Technical University, Maslak 80626, Istanbul, Turkey
2 Gürsey Institute, P.O. Box 6, Çengelköy 81220, Istanbul, Turkey
(Received 29 August 2002 / Published online: 27 November 2002)
A nanosecond scale in situ probe reveals that a bulk linear polymer undergoes a sharp phase transition as a function of the degree of conversion, as it nears the glass transition. The scaling behaviour is in the same universality class as percolation. The exponents and are found to be and in agreement with the best percolation results in three dimensions.
64.60.Ak - Renormalization-group, fractal, and percolation studies of phase transitions.
64.70.Pf - Glass transitions.
82.35.-x - Polymers: properties; reactions; polymerization.
83.80.Sg - Polymer melts.
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2002