NMR investigations of temperature-induced phase transition in aqueous polymer solutions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F11%3A00363237" target="_blank" >RIV/61389013:_____/11:00363237 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1002/masy.201000107" target="_blank" >http://dx.doi.org/10.1002/masy.201000107</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/masy.201000107" target="_blank" >10.1002/masy.201000107</a>
Alternative languages
Result language
angličtina
Original language name
NMR investigations of temperature-induced phase transition in aqueous polymer solutions
Original language description
The different dynamics of polymer segments forming phase-separated globular structures in aqueous (D2O) solutions affects both the shape of NMR spectra and NMR relaxation times of polymer and solvent. Two types of the approach are discussed. The first one is based on the reduction of integrated intensities of polymer NMR lines in high-resolution NMR spectra in the system undergoing the coil-globule phase transition. The fraction p of phase-separated units (units with significantly reduced mobility) andsubsequently, e.g., thermodynamic parameters DH and DS characterizing the coil-globule phase transition can be determined. The second approach is based on measurements of 1H NMR relaxation times of water (HDO) which provide information on behaviour of water during phase transition. The power of both approaches is demonstrated on results obtained with solutions of several thermoresponsive homopolymers and copolymers.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CD - Macromolecular chemistry
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA202%2F09%2F1281" target="_blank" >GA202/09/1281: Stimuli-responsive multicomponent polymer systems in aqueous solutions and gels investigated by NMR and other methods</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Macromolecular Symposia
ISSN
1022-1360
e-ISSN
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Volume of the periodical
305
Issue of the periodical within the volume
1
Country of publishing house
DE - GERMANY
Number of pages
8
Pages from-to
18-25
UT code for WoS article
000298812600003
EID of the result in the Scopus database
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