Characterization of hetero-phase polymers by TD-NMR

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F09%3A00022864" target="_blank" >RIV/60461373:22340/09:00022864 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Characterization of hetero-phase polymers by TD-NMR
Original language 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). TDNMR 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 relaxationdata 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
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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