Volume and heat capacity of model non-aqueous self-assembly systems |
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Authors: | Gérald Perron Jean-François Côté Daniel Lambert Johanne Pageau Jacques E Desnoyers |
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Institution: | (1) c/o IMI-CNRC, INRS-Énergie and Matériaux, 75 de Mortagne, J4B 6Y4 Boucherville, QC, Canada |
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Abstract: | Blends of immiscible polymers are often stabilized by block copolymers which can form non-aqueous micelles and microemulsions in the liquid polymers. The phase diagrans, apparent volumes and apparent heat capacities of model non-aqueous binary and ternary systems were studied in order to investigate the conditions under which such self-assembly systems could form. 1,2-Hexanediol, which can cosolubilize hexane and ethyleneglycol, forms inverse micelles in hexane and weak microaggregates in ethyleneglycol. Genapol X-060, a commercial alcoholic surfactant containing on the average an aliphatic chain of 13 carbons and 6 oxyethylenes (C13E6), forms microaggregates in poly(ethyleneglycol) 400. These self-assembly systems are strengthen in the presence of a third component which has an affinity for the inner phase.Presented at the Symposium, 76th CSC Congress, Sherbrooke, Quebec, May 30–June 3, 1993, honoring Professor Donald Patterson on the occasion of his 65th birthday. |
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Keywords: | Phase diagrams volume heat capacity non-aqueous micelle non-aqueous microemulsion mixtures of 1 2-hexanediol ethyleneglycol and hexane mixtures of Genapol X-060 decane and poly(ethyleneglycol) 400 |
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