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

doi:10.1021/ma971531j

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

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

49 Citations (Scopus)

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 language	English
Pages (from-to)	4430-4438
Number of pages	9
Journal	Macromolecules
Volume	32
Issue number	13
DOIs	https://doi.org/10.1021/ma971531j
Publication status	Published - 29 Jun 1999

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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.",

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AU - Cowie, J. M G

AU - Harris, S.

AU - Gómez Ribelles, J. L.

AU - Meseguer, J. M.

AU - Romero, F.

AU - Torregrosa, C.

PY - 1999/6/29

Y1 - 1999/6/29

N2 - 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.

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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U2 - 10.1021/ma971531j

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JO - Macromolecules

JF - Macromolecules

IS - 13

ER -

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

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