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Cooperative preassociation stages of PEO-PPO-PEO triblock copolymers: NMR and theoretical study
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SYSNO ASEP 0341743 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Cooperative preassociation stages of PEO-PPO-PEO triblock copolymers: NMR and theoretical study Author(s) Kříž, Jaroslav (UMCH-V) RID
Dybal, Jiří (UMCH-V) RID, ORCIDSource Title Journal of Physical Chemistry B. - : American Chemical Society - ISSN 1520-6106
Roč. 114, č. 9 (2010), s. 3140-3151Number of pages 12 s. Language eng - English Country US - United States Keywords pluronics ; pre-association ; hydrophobic hydration ; NMR ; DFT Subject RIV CD - Macromolecular Chemistry R&D Projects GA203/09/1478 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000275047900008 DOI 10.1021/jp911205q Annotation Using 1H and 13C 1D and 2D NMR spectra, PFG diffusion measurements and 13C relaxations supported by DFT calculations, the temperature-dependent behavior of (EO)m(PO)n(EO)m block copolymers (m/n = 31/14, 31/72, and 17/1) in D2O below and at the critical micellar temperature (CMT) was investigated. Changes in cooperative hydrophobic hydration and hydrogen bonds are found as primary pre-association process below CMT. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2011
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