Viscoelastic relaxation phenomena in poly(mono-n-alkyl itaconates)
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Date
1996
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Abstract
Dynamic mechanical relaxation measurements were carried out on two poly(monoalkylitaconates). Three relaxation peaks between -120 and 140 degrees C were present. A prominent subglass relaxation (beta) near -60 degrees C was studied by means of the Fuoss-Kirkwood formalism. A slight viscoelastic activity (beta') was observed at room temperature, and then a high temperature peak (alpha), probably related to the glass transition, was found. A biparabolic model, double Cole constant phase element was used to model the experimental data in this zone. (C) 1996 John Wiley & Sons, Inc.
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poly(monoitaconates), mechanical relaxation, empirical model, master curves