| Téléchargement | - Voir le manuscrit accepté : Synthesis and characterization of soluble copoly(ether ketone)s containing double bonds (PDF, 528 Kio)
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| Auteur | Rechercher : Gao, Yan1; Rechercher : Jian, Xigao; Rechercher : Xuan, Yingnan; Rechercher : Xiang, Sheng; Rechercher : Liang, Ping; Rechercher : Guiver, Michael D.1 |
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| Affiliation | - Conseil national de recherches du Canada. Institut de technologie des procédés chimiques et de l'environnement du CNRC
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| Format | Texte, Article |
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| Sujet | Poly(ether ketones); Double bond; Cyclization reaction; Poly(ether ether ketone) (PEEK); Polycondensation |
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| Résumé | A series of copoly(ether ketone)s containing double bonds along the polymer chains were synthesized from the condensation polymerization of hydroquinone with 4,4'-difluorobenzophenone and 4,5-bis(4-fluorobenzoyl)-1-methylcyclohexene in sulfolane containing anhydrous potassium carbonate. The presence of methylcyclohexene in the polymer chains resulted in an improvement in the solubility of poly(ether ketone)s in organic solvents such as chloroform, chlorobenzene, and sulfolane. As a result, the conditions for synthesizing these polymers were much milder than those for poly(ether ether ketone). The new copoly(ether ketone)s also showed good tensile properties and reasonable thermal stability. New polyethers containing pyrazine unites were obtained from the cyclization reaction of these copoly(ether ketone)s with hydrazine. The hydrazine cycloderivatives led to an increase in the glass-transition temperatures and a decrease in solubility in organic solvents. |
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| Date de publication | 2002 |
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| Condition d’accès | |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro du CNRC | NRCC 44392 |
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| Numéro NPARC | 8925848 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 5acd756c-2aa3-44a3-b488-9836b7c3a173 |
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| Enregistrement créé | 2009-04-23 |
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| Enregistrement modifié | 2020-03-30 |
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