Dynamical Studies of Polymeric Cluster Solutions Obtained near the Gelation Threshold: Glasslike Behavior

M. Adam; M. Delsanti; J. P. Munch; D. Durand

doi:10.1103/PhysRevLett.61.706

Dynamical Studies of Polymeric Cluster Solutions Obtained near the Gelation Threshold: Glasslike Behavior

M. Adam, M. Delsanti, J. P. Munch, and D. Durand

Phys. Rev. Lett. 61, 706 – Published 8 August 1988

Abstract

We report preliminary dynamical structure-factor $G (q, t)$ measurements performed on polydisperse polymer cluster solutions at concentrations such that the largest clusters are partly penetrated by smaller clusters. Upon increase of the polymer concentration, the $G (q, t)$ profile goes from a stretched-exponential function, with an exponent which decreases as concentration increases, to a power-law function. These features suggest that the dynamical properties of this system exhibit glasslike behavior.

Received 6 January 1988

DOI:https://doi.org/10.1103/PhysRevLett.61.706

Authors & Affiliations

M. Adam, M. Delsanti, and J. P. Munch^*

Service de Physique du Solide et de Résonance Magnétique, Institut de Recherche Fondamentale, Commissariat à l'Energie Atomique-Centre d'Etudes Nucléaires de Saclay, 91191 Gif-sur-Yvette Cedex, France

D. Durand

Laboratoire de Chimie et Physico Chimie Macromoléculaire, Unité associée au Centre National de la Recherche Scientifique, Université du Maine, 72017 Le Mans Cedex, France

^*Permanent address: Laboratoire de Spectrométrie et d'Imagerie Ultra-Sonores, Université Louis Pasteur, 4 rue Blaise Pascal, 67070 Strashbourg Cedex, France.