Chromo-and fluorophoric water-soluble polymers and silica particles by nucleophilic substitution reaction of poly(vinyl amine)
dc.bibliographicCitation.firstPage | 79 | eng |
dc.bibliographicCitation.journalTitle | Beilstein Journal of Organic Chemistry | eng |
dc.bibliographicCitation.lastPage | 241 | eng |
dc.bibliographicCitation.volume | 6 | eng |
dc.contributor.author | Hofmann, K. | |
dc.contributor.author | Kahle, I. | |
dc.contributor.author | Simon, F. | |
dc.contributor.author | Spange, S. | |
dc.date.accessioned | 2020-08-11T08:32:50Z | |
dc.date.available | 2020-08-11T08:32:50Z | |
dc.date.issued | 2010 | |
dc.description.abstract | Novel chromophoric and fluorescent carbonitrile-functionalized poly(vinyl amine) (PVAm) and PVAm/silica particles were synthesized by means of nucleophilic aromatic substitution of 8-oxo-8H-acenaphtho[1,2-b]pyrrol-9- carbonitrile (1) with PVAm in water. The water solubility of 1 has been mediated by 2,6-O-β-dimethylcyclodextrin or by pre-adsorption onto silica particles. Furthermore, 1 was converted with isopropylamine into the model compound 1-M. All new compounds were characterized by NMR, FTIR, UV-vis and fluorescence spectroscopy. The solvent-dependent UV-vis absorption and fluorescence emission band positions of the model compound and the carbonitrile-functionalized PVAm were studied and interpreted using the empirical Kamlet-Taft olvent parameters π* (dipolarity/polarizability), α (hydrogen-bond donating capacity) and β (hydrogen-accepting ability) in terms of the linear solvation energy relationship (LSER). The solvent-independent regression coefficients a, b and s were determined using multiple linear correlation analysis. It is shown, that the chains of the polymer have a significant influence on the solvatochromic behavior of 1-P. The structure of the carbonitrile 1-Si bound to polymer-modified silica particles was studied by means of X-ray photoelectron spectroscopy (XPS) and Brunauer-Emmett-Teller (BET) measurements. Fluorescent silica particles were obtained as shown by fluorescence spectroscopy with a diffuse reflectance technique. © 2010 Hofmann et al; licensee Beilstein-Institut. | eng |
dc.description.version | publishedVersion | eng |
dc.identifier.uri | https://doi.org/10.34657/4064 | |
dc.identifier.uri | https://oa.tib.eu/renate/handle/123456789/5435 | |
dc.language.iso | eng | eng |
dc.publisher | Frankfurt, M : Beilstein-Institut zur Förderung der Chemischen Wissenschaften | eng |
dc.relation.doi | https://doi.org/10.3762/bjoc.6.79 | |
dc.relation.issn | 1860-5397 | |
dc.rights.license | CC BY 2.0 Unported | eng |
dc.rights.uri | https://creativecommons.org/licenses/by/2.0/ | eng |
dc.subject.ddc | 540 | eng |
dc.subject.other | Carbonitrile | eng |
dc.subject.other | Cyclodextrin | eng |
dc.subject.other | Fluorescence | eng |
dc.subject.other | Hybridmaterials | eng |
dc.subject.other | Poly(vinyl amine) | eng |
dc.title | Chromo-and fluorophoric water-soluble polymers and silica particles by nucleophilic substitution reaction of poly(vinyl amine) | eng |
dc.type | Article | eng |
dc.type | Text | eng |
tib.accessRights | openAccess | eng |
wgl.contributor | IPF | eng |
wgl.subject | Chemie | eng |
wgl.type | Zeitschriftenartikel | eng |
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