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Thermal-induced transformation of polydopamine structures: an efficient route for the stabilization of the polydopamine surfaces
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SYSNO ASEP 0389382 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Thermal-induced transformation of polydopamine structures: an efficient route for the stabilization of the polydopamine surfaces Author(s) Proks, Vladimír (UMCH-V) RID, ORCID
Brus, Jiří (UMCH-V) RID, ORCID
Pop-Georgievski, Ognen (UMCH-V) RID, ORCID
Večerníková, Eva (UACH-T) SAI
Wisniewski, Waldemar (UMCH-V)
Kotek, Jiří (UMCH-V) RID
Urbanová, Martina (UMCH-V) RID, ORCID
Rypáček, František (UMCH-V) RIDSource Title Macromolecular Chemistry and Physics. - : Wiley - ISSN 1022-1352
Roč. 214, č. 4 (2013), s. 499-507Number of pages 9 s. Language eng - English Country DE - Germany Keywords crosslinking ; polydopamine ; SS NMR Subject RIV CD - Macromolecular Chemistry R&D Projects GPP106/11/P426 GA ČR - Czech Science Foundation (CSF) GAP108/11/1857 GA ČR - Czech Science Foundation (CSF) Institutional support UMCH-V - RVO:61389013 ; UACH-T - RVO:61388980 CEZ AV0Z40500505 - UMCH-V (2005-2011) AV0Z40320502 - UACH-T (2005-2011) UT WOS 000315146800012 DOI 10.1002/macp.201200505 Annotation This work brings a new insight into the structural transformation and stabilization of polydopamine (PDA) surfaces induced by thermal treatment. Taking advantage of the isotopic enrichment, 15N CP/MAS NMR experiments produce significant signal enhancements for PDA, allowing detection of a range of nitrogen structural units-the reaction products of the conversion of NH3+ units of 15N-dopamine.HCl. In addition, 1H-15N cross-polarization polarization-inversion profiles measured for each of the detected 15N NMR signals and 1H-15N FSLG HETCOR NMR spectra allow revisions and extensions to be made in a structural elucidation of PDA. Combining the NMR data thermogravimetric analyses and an FTIR analysis, several competitive processes that occur during the thermal conversion of dopamine are identified. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2013
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