Local polymer dynamics

Ediger, M. D. and Adolf, D, B. Brownian Dynamics Simulations of Local Polymer Dynamics. VoU 16, pp. 73-110. 

This article shows how the recent developments in the Fluorescence Anisotropy Decay technique permitted by Synchrotron Radiation can be used to study local polymer dynamics both in dilute solutions and in bulk polymers. 

In experiments currently in progress, the techniques used in this paper are being applied to the observation of local polymer dynamics in concentrated solutions and in the bulk. Measurements can be made on time scales as long as several triplet lifetimes ( 100 msec) because the transient grating technique utilizes absorption and not fluorescence. This long time window will allow the investigation of local motions in the bulk as a function of temperature from the rubbery state to the glass transition. 

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