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Liquid-Glassy Polymer Diffusion: Effects of Liquid Molecular Weight and Temperature

✍ Scribed by J. Pablo Tomba; Luis M. Arzondo; José M. Carella; José M. Pastor

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
223 KB
Volume
208
Category
Article
ISSN
1022-1352

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✦ Synopsis

Abstract

We examine mechanistic aspects of the diffusion between a series of liquid polystyrenes (PS) and a glassy poly(phenylene oxide) (PPO) matrix, through the use of confocal Raman microspectroscopy. The results show that the diffusion kinetics has Fickean characteristics, similar to those found in liquid‐liquid polymer diffusion. No signatures of the linear regime typical of the case‐II diffusion mechanism were found. Overall, these observations are consistent with the claim that case‐II is unlikely to occur in liquid‐glassy polymer diffusion.

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