Return to search

INTERAKCE V ROZTOCÍCH A GELECH NA PODNĚTY REAGUJÍCICH POLYMERNÍCH SYSTÉMŮ STUDOVANÝCH NMR SPEKTROSKOPIÍ / Interactions in solutions and gels of stimuli-responsive polymer systems investigated by NMR spectroscopy

Stimuli-responsive (stimuli-sensitive, intelligent, or smart) polymers are polymer materials which, after small external stimuli, evidently change their physical or chemical properties. Smart polymers can be classified according stimuli they respond to such as: temperature changes, mechanical stress, light irradiation, ultrasonic treatment, application of external magnetic as well as electric field, changes of pH, ionic strength, addition of the chemical agents and presence of biomolecules and bioactive molecules. Stimuli-responsive synthetic polymer systems has attracted considerable attention due to wide range of applications, i.e. controlled drug delivery and release systems, diagnostics, tissue engineering and 'smart' optical systems, as well as biosensors, microelectromechanical systems, coatings, and textiles. Among the types of stimuli for this dissertation temperature, pH and reactive oxygen species (ROS) responsive polymer systems were studied. In case of thermoresponsive polymers, when polymer chains are molecularly dissolved in a good solvent, changes (increasing or decreasing) of temperature result in insolubility (globular nanoparticles formation) of polymer chains, called temperature induced phase-separation. pH responsive polymers change properties such as: solubility, volume (gels),...

Identiferoai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:379115
Date January 2018
CreatorsKonefał, Rafał
ContributorsSpěváček, Jiří, Hrabal, Richard, Štěpánek, Miroslav
Source SetsCzech ETDs
LanguageEnglish
Detected LanguageEnglish
Typeinfo:eu-repo/semantics/doctoralThesis
Rightsinfo:eu-repo/semantics/restrictedAccess

Page generated in 0.0021 seconds