Thermal‐Induced Transformation of Polydopamine Structures: An Efficient Route for the Stabilization of the Polydopamine Surfaces. Issue 4 (23rd January 2013)

• Record Type: Journal Article
• Authors: Proks, Vladimír; Brus, Jiří; Pop‐Georgievski, Ognen; Večerníková, Eva; Wisniewski, Waldemar; Kotek, Jiří; Urbanová, Matrina; Rypáček, František
• Is Part Of: Macromolecular chemistry and physics. Volume 214:Issue 4(2013:Feb.)
• Page Start: 499
• Page End: 507
• Publication Date: 2013-01-23
• Subjects: Polymers -- Periodicals; Polymerization -- Periodicals; Synthetic products -- Periodicals; Macromolecules -- Periodicals; 547.7
• DOI: 10.1002/macp.201200505
• Languages: English
• ISSNs: 1022-1352

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>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.</p> </abstract>