Double dynamic hydrogels formed by wormlike surfactant micelles and cross-linked polymer
Article dans une revue avec comité de lecture
Author

43709 Frank Laboratory of Neutron Physics [Dubna] [FLNP]
122906 Moscow Institute of Physics and Technology [Moscow] [MIPT]

30852 A. V. Shubnikov Institute of Crystallography [IC RAS]
122906 Moscow Institute of Physics and Technology [Moscow] [MIPT]
Date
2022-04Journal
Journal of Colloid and Interface ScienceAbstract
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.
Files in this item
Related items
Showing items related by title, author, creator and subject.
-
Article dans une revue avec comité de lectureARQUIER, Raphaël; ILIOPOULOS, Ilias; RÉGNIER, Gilles; MIQUELARD-GARNIER, Guillaume (Elsevier BV, 2022-07-16)Continuous-Carbon-Fiber (CF)/polyaryletherketone (PAEK) composites have recently attracted interest especially in the aerospace industry due to short-time processes and possible weldability and recyclability. However, their ...
-
Article dans une revue avec comité de lectureROLAND, Sébastien; MIQUELARD-GARNIER, Guillaume; GERVAIS, Matthieu; GUINAULT, Alain; SOLLOGOUB, , Cyrille (Elsevier, 2016)We report the making of multilayered self-assembled films by coextrusion, composed of alternated layers of confining polycarbonate and confined poly(styrene-. b-butadiene-. b-methyl methacrylate), whose blocks are chemically ...
-
Article dans une revue avec comité de lectureMONTANA, Juan-Sebastian; MIQUELARD-GARNIER, Guillaume; RICHAUD, Emmanuel; ROLAND, SEBASTIEN (Elsevier, 2018)Multilayer coextrusion was used to obtain nanolayered films of self-assembled commercial triblock copolymer poly(methyl methacrylate-b-butyl acrylate-b-methyl methacrylate) (MAM) confined by poly (methyl methacrylate) ...
-
Article dans une revue avec comité de lectureMONTANA, Juan-Sebastian; ROLAND, Sébastien; RICHAUD, Emmanuel; MIQUELARD-GARNIER, Guillaume (Elsevier, 2018)Multilayer coextrusion was used to obtain nanolayered films of self-assembled commercial triblock copolymer poly(methyl methacrylate-b-butyl acrylate-b-methyl methacrylate) (MAM) confined by poly(methyl methacrylate) (PMMA). ...
-
Article dans une revue avec comité de lectureMIQUELARD-GARNIER, Guillaume; ROLAND, Sébastien (Elsevier, 2016)Methods for obtaining Flory parameter (χ) values for polymer blends or blocks are critically examined, for three simple systems (polystyrene/poly(methyl methacrylate), polystyrene/polycarbonate, poly(methyl methacrylate) ...