Dominant role of wormlike micelles in temperature-responsive viscoelastic properties of their mixtures with polymeric chains

Handle URI:
http://hdl.handle.net/10754/598012
Title:
Dominant role of wormlike micelles in temperature-responsive viscoelastic properties of their mixtures with polymeric chains
Authors:
Molchanov, Vyacheslav S.; Philippova, Olga E.
Abstract:
Temperature effects on the rheological properties of viscoelastic solutions containing entangled wormlike micelles of potassium oleate and hydrophobically modified polyacrylamide were studied in a wide range of polymer concentrations. A very pronounced drop of viscosity by four orders of magnitude was observed at heating from 20 to 78 °C both in the presence and in the absence of polymer indicating that the wormlike micelles are mainly responsible for this effect. The highly thermosensitive behavior was attributed to the shortening of micellar chains induced by heating. Although the decrease in viscosity is almost the same for both surfactant and surfactant/polymer systems, the absolute values of the viscosity in the presence of polymer are by few orders of magnitude higher, which is due to the formation of a common network of entangled polymer and micellar chains. As a result, the added polymer allows one to get highly temperature responsive system that keeps viscoelastic properties in a much wider range of temperatures, which makes it very promising for various practical applications. © 2012 Elsevier Inc.
Citation:
Molchanov VS, Philippova OE (2013) Dominant role of wormlike micelles in temperature-responsive viscoelastic properties of their mixtures with polymeric chains. Journal of Colloid and Interface Science 394: 353–359. Available: http://dx.doi.org/10.1016/j.jcis.2012.11.018.
Publisher:
Elsevier BV
Journal:
Journal of Colloid and Interface Science
KAUST Grant Number:
KUK-F1-034-13
Issue Date:
Mar-2013
DOI:
10.1016/j.jcis.2012.11.018
PubMed ID:
23273543
Type:
Article
ISSN:
0021-9797
Sponsors:
The financial support of the program Scientific and Educational Staff of Innovative Russia in 2009-2013 and of the Russian Foundation for Basic Research is gratefully acknowledged. This publication is based on the work supported in part by Award No KUK-F1-034-13 made by King Abdullah University of Science and Technology (KAUST), Saudi Arabia. The authors would like to express their gratitude to Dr. A.I. Kuklin and Dr. A.V. Rogachev for their assistance in SANS experiments.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorMolchanov, Vyacheslav S.en
dc.contributor.authorPhilippova, Olga E.en
dc.date.accessioned2016-02-25T13:10:57Zen
dc.date.available2016-02-25T13:10:57Zen
dc.date.issued2013-03en
dc.identifier.citationMolchanov VS, Philippova OE (2013) Dominant role of wormlike micelles in temperature-responsive viscoelastic properties of their mixtures with polymeric chains. Journal of Colloid and Interface Science 394: 353–359. Available: http://dx.doi.org/10.1016/j.jcis.2012.11.018.en
dc.identifier.issn0021-9797en
dc.identifier.pmid23273543en
dc.identifier.doi10.1016/j.jcis.2012.11.018en
dc.identifier.urihttp://hdl.handle.net/10754/598012en
dc.description.abstractTemperature effects on the rheological properties of viscoelastic solutions containing entangled wormlike micelles of potassium oleate and hydrophobically modified polyacrylamide were studied in a wide range of polymer concentrations. A very pronounced drop of viscosity by four orders of magnitude was observed at heating from 20 to 78 °C both in the presence and in the absence of polymer indicating that the wormlike micelles are mainly responsible for this effect. The highly thermosensitive behavior was attributed to the shortening of micellar chains induced by heating. Although the decrease in viscosity is almost the same for both surfactant and surfactant/polymer systems, the absolute values of the viscosity in the presence of polymer are by few orders of magnitude higher, which is due to the formation of a common network of entangled polymer and micellar chains. As a result, the added polymer allows one to get highly temperature responsive system that keeps viscoelastic properties in a much wider range of temperatures, which makes it very promising for various practical applications. © 2012 Elsevier Inc.en
dc.description.sponsorshipThe financial support of the program Scientific and Educational Staff of Innovative Russia in 2009-2013 and of the Russian Foundation for Basic Research is gratefully acknowledged. This publication is based on the work supported in part by Award No KUK-F1-034-13 made by King Abdullah University of Science and Technology (KAUST), Saudi Arabia. The authors would like to express their gratitude to Dr. A.I. Kuklin and Dr. A.V. Rogachev for their assistance in SANS experiments.en
dc.publisherElsevier BVen
dc.subjectHydrophobically modified polymersen
dc.subjectViscoelastic propertiesen
dc.subjectWormlike micellesen
dc.titleDominant role of wormlike micelles in temperature-responsive viscoelastic properties of their mixtures with polymeric chainsen
dc.typeArticleen
dc.identifier.journalJournal of Colloid and Interface Scienceen
dc.contributor.institutionLomonosov Moscow State University, Moscow, Russian Federationen
kaust.grant.numberKUK-F1-034-13en

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