Glass transition and structural relaxation in polystyrene/poly(2,6-dimethyl-1,4-phenylene oxide) miscible blends

J. M G Cowie, S. Harris, J. L. Gómez Ribelles, J. M. Meseguer, F. Romero, C. Torregrosa

Research output: Contribution to journalArticle

Abstract

The glass transition and the structural relaxation processes of blends of polystyrene and poly(2,6-dimethyl-1,4-phenylene oxide) have been studied by differential scanning calorimetry. The experimental results were compared with the prediction of a model based on the calculation of the configurational entropy of the sample during the thermal history. The model is fitted to the experimental results, and material parameters independent of the thermal history are obtained. These parameters are used to estimate the length of the cooperativity unit at the glass-transition temperature for each blend and pure polymer.

Original languageEnglish
Pages (from-to)4430-4438
Number of pages9
JournalMacromolecules
Volume32
Issue number13
DOIs
Publication statusPublished - 29 Jun 1999

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polystyrene
histories
oxides
glass
glass transition temperature
heat measurement
entropy
scanning
polymers
estimates
predictions

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Cowie, J. M. G., Harris, S., Gómez Ribelles, J. L., Meseguer, J. M., Romero, F., & Torregrosa, C. (1999). Glass transition and structural relaxation in polystyrene/poly(2,6-dimethyl-1,4-phenylene oxide) miscible blends. Macromolecules, 32(13), 4430-4438. https://doi.org/10.1021/ma971531j
Cowie, J. M G ; Harris, S. ; Gómez Ribelles, J. L. ; Meseguer, J. M. ; Romero, F. ; Torregrosa, C. / Glass transition and structural relaxation in polystyrene/poly(2,6-dimethyl-1,4-phenylene oxide) miscible blends. In: Macromolecules. 1999 ; Vol. 32, No. 13. pp. 4430-4438.
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Cowie, JMG, Harris, S, Gómez Ribelles, JL, Meseguer, JM, Romero, F & Torregrosa, C 1999, 'Glass transition and structural relaxation in polystyrene/poly(2,6-dimethyl-1,4-phenylene oxide) miscible blends', Macromolecules, vol. 32, no. 13, pp. 4430-4438. https://doi.org/10.1021/ma971531j

Glass transition and structural relaxation in polystyrene/poly(2,6-dimethyl-1,4-phenylene oxide) miscible blends. / Cowie, J. M G; Harris, S.; Gómez Ribelles, J. L.; Meseguer, J. M.; Romero, F.; Torregrosa, C.

In: Macromolecules, Vol. 32, No. 13, 29.06.1999, p. 4430-4438.

Research output: Contribution to journalArticle

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AB - The glass transition and the structural relaxation processes of blends of polystyrene and poly(2,6-dimethyl-1,4-phenylene oxide) have been studied by differential scanning calorimetry. The experimental results were compared with the prediction of a model based on the calculation of the configurational entropy of the sample during the thermal history. The model is fitted to the experimental results, and material parameters independent of the thermal history are obtained. These parameters are used to estimate the length of the cooperativity unit at the glass-transition temperature for each blend and pure polymer.

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Cowie JMG, Harris S, Gómez Ribelles JL, Meseguer JM, Romero F, Torregrosa C. Glass transition and structural relaxation in polystyrene/poly(2,6-dimethyl-1,4-phenylene oxide) miscible blends. Macromolecules. 1999 Jun 29;32(13):4430-4438. https://doi.org/10.1021/ma971531j