Gelation and micellization of aqueous solutions of a triblock copolymer

The temperature-dependent properties of aqueous solutions of a triblock copolymer of ethylene oxide (EO) and propylene oxide (PO), with composition EO 21PO 47EO 21, have been measured by use of viscoelastic techniques and scanning calorimetry. Unimer-micelle equilibrium exists at low temperatures an...

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Published inJournal of non-crystalline solids Vol. 172; pp. 972 - 977
Main Authors Jørgensen, E.B., Jensen, J.H., Hvidt, S.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.09.1994
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Abstract The temperature-dependent properties of aqueous solutions of a triblock copolymer of ethylene oxide (EO) and propylene oxide (PO), with composition EO 21PO 47EO 21, have been measured by use of viscoelastic techniques and scanning calorimetry. Unimer-micelle equilibrium exists at low temperatures and two sol to gel transitions are observed with increasing temperatures. The elastic moduli of the gel states are attributed to increasing exposure of hydrophobic groups to water with strain.
AbstractList The temperature-dependent properties of aqueous solutions of a triblock copolymer of ethylene oxide (EO) and propylene oxide (PO), with composition EO 21PO 47EO 21, have been measured by use of viscoelastic techniques and scanning calorimetry. Unimer-micelle equilibrium exists at low temperatures and two sol to gel transitions are observed with increasing temperatures. The elastic moduli of the gel states are attributed to increasing exposure of hydrophobic groups to water with strain.
Author Jørgensen, E.B.
Jensen, J.H.
Hvidt, S.
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10.1007/BF01513189
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10.1021/j100157a064
10.1016/0021-9797(88)90111-7
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10.1021/j100193a072
10.1103/PhysRevLett.68.2340
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