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Double dynamic hydrogels formed by wormlike surfactant micelles and cross-linked polymer.
Shibaev, Andrey V; Kuklin, Alexander I; Torocheshnikov, Vladimir N; Orekhov, Anton S; Roland, Sébastien; Miquelard-Garnier, Guillaume; Matsarskaia, Olga; Iliopoulos, Ilias; Philippova, Olga E.
Afiliación
  • Shibaev AV; Physics Department, Lomonosov Moscow State University, Moscow 119991, Russia.
  • Kuklin AI; Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Dubna 141980, Russia; Moscow Institute of Physics and Technology, Dolgoprudny 141701, Russia.
  • Torocheshnikov VN; Chemistry Department, Lomonosov Moscow State University, Moscow 119991, Russia.
  • Orekhov AS; Moscow Institute of Physics and Technology, Dolgoprudny 141701, Russia; A.V. Shubnikov Institute of Crystallography, Moscow 119333, Russia.
  • Roland S; Laboratoire PIMM, Arts et Metiers Institute of Technology, CNRS, Cnam, HESAM Universite, Paris 75013, France.
  • Miquelard-Garnier G; Laboratoire PIMM, Arts et Metiers Institute of Technology, CNRS, Cnam, HESAM Universite, Paris 75013, France.
  • Matsarskaia O; Institut Laue-Langevin, Grenoble 38042, France.
  • Iliopoulos I; Laboratoire PIMM, Arts et Metiers Institute of Technology, CNRS, Cnam, HESAM Universite, Paris 75013, France.
  • Philippova OE; Physics Department, Lomonosov Moscow State University, Moscow 119991, Russia. Electronic address: phil@polly.phys.msu.ru.
J Colloid Interface Sci ; 611: 46-60, 2022 Apr.
Article en En | MEDLINE | ID: mdl-34929438
HYPOTHESIS: Interpenetrating networks consisting of a polymer network with dynamic cross-links and a supramolecular network allow obtaining hydrogels with significantly enhanced mechanical properties. EXPERIMENTS: Binary hydrogels composed of a dynamically cross-linked poly(vinyl alcohol) (PVA) network and a transient network of entangled highly charged mixed wormlike micelles (WLMs) of surfactants (potassium oleate and n-octyltrimethylammonium bromide) were prepared and studied by rheometry, SANS, USANS, cryo-TEM, and NMR spectroscopy. FINDINGS: Binary hydrogels show significantly enhanced rheological properties (a 3400-fold higher viscosity and 27-fold higher plateau modulus) as compared to their components taken separately. This is due to the microphase separation leading to local concentrating of PVA and WLMs providing larger number of polymer-polymer contacts for cross-linking and longer WLMs with more entanglements. Such materials are very promising for the application in many areas, ranging from enhanced oil recovery to biomedical uses.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Tensoactivos / Micelas Idioma: En Revista: J Colloid Interface Sci Año: 2022 Tipo del documento: Article País de afiliación: Rusia Pais de publicación: Estados Unidos
Texto completo
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Tensoactivos / Micelas Idioma: En Revista: J Colloid Interface Sci Año: 2022 Tipo del documento: Article País de afiliación: Rusia Pais de publicación: Estados Unidos