About: Characterization of hetero-phase polymers by TD-NMR

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Description	NMR apparatus used in our experiments is not a classical NMR spectrometer for measurement of high-resolution spectra of 1H or 13C chemical shifts, but belongs to the class of spectrometers with resolution in the time-domain (thus the acronym TD NMR). TD NMR spectrometer measures the time-evolution of the NMR signal and characterizes this evolution by relaxation times (e.g., T1 and T2 times). In order to obtain relaxation times, one has to conduct well-selected pulse experiments. The obtained relaxation data can be rather empirically than rigorously correlated with physical properties and sample composition, e.g., with viscosity, or phase content in hetero-phase polymers. No special preparation is required for liquid and solid samples used in TD-NMR measurements. Here we briefly describe the methodology of measuring and processing of TD-NMR signal. Our experience with TD-NMR is illustrated on examples of both well-defined simple samples and complex samples of polymers with hetero-phase morphology. For NMR apparatus used in our experiments is not a classical NMR spectrometer for measurement of high-resolution spectra of 1H or 13C chemical shifts, but belongs to the class of spectrometers with resolution in the time-domain (thus the acronym TD NMR). TD NMR spectrometer measures the time-evolution of the NMR signal and characterizes this evolution by relaxation times (e.g., T1 and T2 times). In order to obtain relaxation times, one has to conduct well-selected pulse experiments. The obtained relaxation data can be rather empirically than rigorously correlated with physical properties and sample composition, e.g., with viscosity, or phase content in hetero-phase polymers. No special preparation is required for liquid and solid samples used in TD-NMR measurements. Here we briefly describe the methodology of measuring and processing of TD-NMR signal. Our experience with TD-NMR is illustrated on examples of both well-defined simple samples and complex samples of polymers with hetero-phase morphology. For (en)
Title	Characterization of hetero-phase polymers by TD-NMR Characterization of hetero-phase polymers by TD-NMR (en)
skos:prefLabel	Characterization of hetero-phase polymers by TD-NMR Characterization of hetero-phase polymers by TD-NMR (en)
skos:notation	RIV/60461373:22340/09:00022864!RIV10-GA0-22340___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA104/07/1127), P(KAN208240651)
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Kosek, Juraj Hajová, Hana Gregor, Tomáš
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola chemicko-technologická v Praze / Fakulta chemicko-inženýrská
http://linked.open...dnocenehoVysledku	306776
http://linked.open...ai/riv/idVysledku	RIV/60461373:22340/09:00022864
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	time-domain NMR; spin relaxation; hetero-phase polymers; pulse sequence measurements (en)
http://linked.open.../riv/klicoveSlovo	hetero-phase polymers spin relaxation pulse sequence measurements time-domain NMR
http://linked.open...ontrolniKodProRIV	[9275C57AED27]
http://linked.open...v/mistoKonaniAkce	Srní, Šumava
http://linked.open...i/riv/mistoVydani	Praha
http://linked.open...i/riv/nazevZdroje	CHISA 2009
http://linked.open...in/vavai/riv/obor	CI
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Study of interactions of biological macromolecules and nanolayers with a view to research of polymer microfluidic biosensors and therapeutic nanoparticles Mathematical modeling and experimental study of the evolution of meso-scopic structure of polymeric materials
http://linked.open...UplatneniVysledku	2009
http://linked.open...iv/tvurceVysledku	Gregor, Tomáš Hajová, Hana Kosek, Juraj Chmelař, Josef
http://linked.open...vavai/riv/typAkce	CST - Celostátní
http://linked.open.../riv/zahajeniAkce	2009-10-19 (xsd:date)
number of pages	12 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Česká společnost chemického inženýrství
https://schema.org/isbn	978-80-86059-51-8
http://localhost/t...ganizacniJednotka	22340

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