Search results for "Polymer Networks"

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Equilibrium swelling properties of polyampholytic hydrogels

1996

The role of counter ions and ion dissociation in establishing the equilibrium swelling of balanced and unbalanced polyampholytic hydrogels has been investigated experimentally and theoretically. The swelling dependence on both the net charge offset and the external bath salt concentration has been examined using an acrylamide based polyampholytic hydrogels. By careful consideration of the swelling kinetics, we illustrate the effects of ion dissociation equilibria and counter ion shielding in polyampholytic hydrogels near their balance point where both polyelectrolyte and polyampholyte effects are present. The theory considers a Flory type swelling model where the Coulombic interactions betw…

EquilibriumGeneral Physics and AstronomyIonic bondingThermodynamicsGels ; Swelling ; Polymer Networks ; Coulomb Field ; Ionic Composition ; Screening ; Charge Density ; EquilibriumIonsymbols.namesakemedicinePhysics::Chemical PhysicsPhysical and Theoretical ChemistrySwelling:FÍSICA::Química física [UNESCO]Debyechemistry.chemical_classificationQuantitative Biology::BiomoleculesChemistryIonic CompositionCharge densityPolyelectrolyteUNESCO::FÍSICA::Química físicaCondensed Matter::Soft Condensed MatterPolymer NetworksCharge DensityCoulomb FieldSelf-healing hydrogelssymbolsScreeningSwellingmedicine.symptomCounterionGels
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Effect of Poly(Titanium Oxide) on the Viscoelastic and Thermophysical Properties of Interpenetrating Polymer Networks

2021

The authors thank V. Serga for many useful discussions. The research was (partly) performed in the Institute of Solid State Physics, University of Latvia ISSP UL. ISSP UL as the Center of Excellence is supported through the Framework Program for European universities Union Horizon 2020, H2020-WIDESPREAD-01–2016–2017-Teaming Phase 2 under Grant Agreement No. 739508, CAMART2 project.

Materials scienceGeneral Chemical Engineering02 engineering and technology(Hydroxyethyl)methacrylate010402 general chemistryMethacrylate01 natural sciencesInorganic Chemistrychemistry.chemical_compoundDifferential scanning calorimetrysol-gel methodGeneral Materials SciencePolyurethanechemistry.chemical_classificationAcrylateCrystallographypoly(titanium oxide)technology industry and agriculturePolymerDynamic mechanical analysis021001 nanoscience & nanotechnologyCondensed Matter Physics0104 chemical sciencesTitanium oxidechemistryChemical engineeringQD901-999polyurethane2-hydroxyethyl methacrylate:NATURAL SCIENCES [Research Subject Categories]0210 nano-technologyinterpenetrating polymer networksCrystals
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