Dual Transient Networks of Polymer and Micellar Chains: Structure and Viscoelastic Synergy
Dual transient networks were prepared by mixing highly charged long wormlike micelles of surfactants with polysaccharide chains of hydroxypropyl guar above the entanglement concentration for each of the components. The wormlike micelles were composed of two oppositely charged surfactants potassium o...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/13/23/4255 |
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| author | Sébastien Roland Guillaume Miquelard-Garnier Andrey V. Shibaev Anna L. Aleshina Alexis Chennevière Olga Matsarskaia Cyrille Sollogoub Olga E. Philippova Ilias Iliopoulos |
| author_facet | Sébastien Roland Guillaume Miquelard-Garnier Andrey V. Shibaev Anna L. Aleshina Alexis Chennevière Olga Matsarskaia Cyrille Sollogoub Olga E. Philippova Ilias Iliopoulos |
| author_sort | Sébastien Roland |
| collection | DOAJ |
| description | Dual transient networks were prepared by mixing highly charged long wormlike micelles of surfactants with polysaccharide chains of hydroxypropyl guar above the entanglement concentration for each of the components. The wormlike micelles were composed of two oppositely charged surfactants potassium oleate and n-octyltrimethylammonium bromide with a large excess of anionic surfactant. The system is macroscopically homogeneous over a wide range of polymer and surfactant concentrations, which is attributed to a stabilizing effect of surfactants counterions that try to occupy as much volume as possible in order to gain in translational entropy. At the same time, by small-angle neutron scattering (SANS) combined with ultrasmall-angle neutron scattering (USANS), a microphase separation with the formation of polymer-rich and surfactant-rich domains was detected. Rheological studies in the linear viscoelastic regime revealed a synergistic 180-fold enhancement of viscosity and 65-fold increase of the longest relaxation time in comparison with the individual components. This effect was attributed to the local increase in concentration of both components trying to avoid contact with each other, which makes the micelles longer and increases the number of intermicellar and interpolymer entanglements. The enhanced rheological properties of this novel system based on industrially important polymer hold great potential for applications in personal care products, oil recovery and many other fields. |
| first_indexed | 2024-03-10T04:46:17Z |
| format | Article |
| id | doaj.art-3fc0fb38520a4c199cc4d79caf36bd40 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T04:46:17Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-3fc0fb38520a4c199cc4d79caf36bd402023-11-23T02:55:14ZengMDPI AGPolymers2073-43602021-12-011323425510.3390/polym13234255Dual Transient Networks of Polymer and Micellar Chains: Structure and Viscoelastic SynergySébastien Roland0Guillaume Miquelard-Garnier1Andrey V. Shibaev2Anna L. Aleshina3Alexis Chennevière4Olga Matsarskaia5Cyrille Sollogoub6Olga E. Philippova7Ilias Iliopoulos8Laboratoire PIMM, Arts et Metiers Institute of Technology, CNRS, Cnam, HESAM Universite, 75013 Paris, FranceLaboratoire PIMM, Arts et Metiers Institute of Technology, CNRS, Cnam, HESAM Universite, 75013 Paris, FrancePhysics Department, Lomonosov Moscow State University, 119991 Moscow, RussiaPhysics Department, Lomonosov Moscow State University, 119991 Moscow, RussiaLaboratoire Léon Brillouin, CEA Saclay, 91191 Gif-sur-Yvette, FranceInstitut Laue-Langevin, 38042 Grenoble, FranceLaboratoire PIMM, Arts et Metiers Institute of Technology, CNRS, Cnam, HESAM Universite, 75013 Paris, FrancePhysics Department, Lomonosov Moscow State University, 119991 Moscow, RussiaLaboratoire PIMM, Arts et Metiers Institute of Technology, CNRS, Cnam, HESAM Universite, 75013 Paris, FranceDual transient networks were prepared by mixing highly charged long wormlike micelles of surfactants with polysaccharide chains of hydroxypropyl guar above the entanglement concentration for each of the components. The wormlike micelles were composed of two oppositely charged surfactants potassium oleate and n-octyltrimethylammonium bromide with a large excess of anionic surfactant. The system is macroscopically homogeneous over a wide range of polymer and surfactant concentrations, which is attributed to a stabilizing effect of surfactants counterions that try to occupy as much volume as possible in order to gain in translational entropy. At the same time, by small-angle neutron scattering (SANS) combined with ultrasmall-angle neutron scattering (USANS), a microphase separation with the formation of polymer-rich and surfactant-rich domains was detected. Rheological studies in the linear viscoelastic regime revealed a synergistic 180-fold enhancement of viscosity and 65-fold increase of the longest relaxation time in comparison with the individual components. This effect was attributed to the local increase in concentration of both components trying to avoid contact with each other, which makes the micelles longer and increases the number of intermicellar and interpolymer entanglements. The enhanced rheological properties of this novel system based on industrially important polymer hold great potential for applications in personal care products, oil recovery and many other fields.https://www.mdpi.com/2073-4360/13/23/4255wormlike surfactant micellesrheologyviscoelasticityself-assemblyhydroxypropyl guar |
| spellingShingle | Sébastien Roland Guillaume Miquelard-Garnier Andrey V. Shibaev Anna L. Aleshina Alexis Chennevière Olga Matsarskaia Cyrille Sollogoub Olga E. Philippova Ilias Iliopoulos Dual Transient Networks of Polymer and Micellar Chains: Structure and Viscoelastic Synergy Polymers wormlike surfactant micelles rheology viscoelasticity self-assembly hydroxypropyl guar |
| title | Dual Transient Networks of Polymer and Micellar Chains: Structure and Viscoelastic Synergy |
| title_full | Dual Transient Networks of Polymer and Micellar Chains: Structure and Viscoelastic Synergy |
| title_fullStr | Dual Transient Networks of Polymer and Micellar Chains: Structure and Viscoelastic Synergy |
| title_full_unstemmed | Dual Transient Networks of Polymer and Micellar Chains: Structure and Viscoelastic Synergy |
| title_short | Dual Transient Networks of Polymer and Micellar Chains: Structure and Viscoelastic Synergy |
| title_sort | dual transient networks of polymer and micellar chains structure and viscoelastic synergy |
| topic | wormlike surfactant micelles rheology viscoelasticity self-assembly hydroxypropyl guar |
| url | https://www.mdpi.com/2073-4360/13/23/4255 |
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