P. Tomba et al., DEVELOPMENT OF A SIMPLE EXPERIMENTAL-METHOD TO MEASURE INTERPHASE COMPOSITION PROFILES GENERATED BY DIFFUSION IN POLYMERS, Journal of polymer science. Part B, Polymer physics, 35(15), 1997, pp. 2435-2445
An experimental method to determine interphase composition profiles in
amorphous polymers pairs and polymer-solvent pairs is presented. The
method is based on the measurement of dynamic mechanical properties of
slender composite beams, and well-established properties of amorphous
polymer homogeneous blends and solutions. The method does not require
tracers. A simple calibration procedure is included in the descriptio
n, and some results for a polystyrene-polystyrene pair are used to ill
ustrate the method application. (C) 1997 John Wiley & Sons, Inc.