On the plasticization of poly(2,6-dimethyl phenylene oxide) by CO₂

Par Conseil national de recherches du Canada

Téléchargement	Voir le manuscrit accepté : On the plasticization of poly(2,6-dimethyl phenylene oxide) by CO₂ (PDF, 869 Kio)
DOI	Trouver le DOI : https://doi.org/10.1002/polb.1994.090321512
Auteur	Rechercher : Handa, Y. Paul¹; Rechercher : Lampron, Steeve¹; Rechercher : O'Neill, Mark L.¹
Affiliation	Conseil national de recherches du Canada. Institut de technologie des procédés chimiques et de l'environnement du CNRC
Format	Texte, Article
Sujet	Plasticization; Poly(2,6-dimethyl phenylene oxide); PPO-CO₂; Glass transition
Résumé	Change in the glass transition temperature, Tg, of poly(2,6-dimethyl phenylene oxide), PPO, due to the dissolved CO₂ has been measured as a function of the gas pressure, p, using a high-pressure DSC cell. At 61.2 atm, the highest pressure studied, Tg is depressed by 31.6°C. The depression in Tg is found to be linear with pressure, with dTg/dp of −0.5°C atm⁻¹. The experimental results are in fair agreement with those calculated from a quasilattice solid-solution model for polymer-diluent systems. The present results, however, differ markedly from a recent investigation on PPO-CO₂ system which reported a depression in Tg of 226°C at 60 atm and a dTg/dp of −3.8°C atm⁻¹
Date de publication	1994-11-30
Dans	Journal of Polymer Science Part B: Polymer Physics 32, nº 15 (30 novembre 1994) : 2549–2553.
Langue	anglais
Publications évaluées par des pairs	Oui
Numéro du CNRC	NRCC 37569
Numéro NPARC	14503558
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Identificateur de l’enregistrement	92b743c0-a659-420d-885b-3170a18121d1
Enregistrement créé	2010-03-01
Enregistrement modifié	2020-04-27

Date de modification :: 2024-07-07