Počet záznamů: 1
Determination of amino groups on functionalized graphene oxide for polyurethane nanomaterials: XPS quantitation vs. functional speciation
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SYSNO ASEP 0472004 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Determination of amino groups on functionalized graphene oxide for polyurethane nanomaterials: XPS quantitation vs. functional speciation Tvůrce(i) Ederer, J. (CZ)
Janoš, P. (CZ)
Ecorchard, Petra (UACH-T) SAI, RID, ORCID
Tolasz, Jakub (UACH-T) RID, ORCID, SAI
Štengl, Václav (UACH-T) RID, ORCID, SAI
Beneš, Hynek (UMCH-V) RID, ORCID
Perchacz, Magdalena (UMCH-V) RID
Pop-Georgievski, Ognen (UMCH-V) RID, ORCIDZdroj.dok. RSC Advances. - : Royal Society of Chemistry
Roč. 7, č. 21 (2017), s. 12464-12473Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova Polyurethane nanocomposites ; Spectro-photometric method ; Polymer-filler Vědní obor RIV CA - Anorganická chemie Obor OECD Inorganic and nuclear chemistry Vědní obor RIV – spolupráce Ústav makromolekulární chemie - Makromolekulární chemie CEP GA14-05146S GA ČR - Grantová agentura ČR Institucionální podpora UACH-T - RVO:61388980 ; UMCH-V - RVO:61389013 UT WOS 000395934500004 EID SCOPUS 85014148614 DOI 10.1039/c6ra28745j Anotace Amino-functionalized graphene oxide was reacted with isocyanate monomer to evaluate the potential application of GO-NH2 as a functional filler for the preparation of polyurethane nanocomposites. A set of advanced techniques (XRD, FTIR spectroscopy, Raman spectroscopy, and TEM) was used to characterize the functionalized samples, together with elemental analysis and XPS, which provided valuable information on the total N content and the nitrogen (chemical) speciation, respectively. In addition, a simple and fast spectrophotometric method was developed for the estimation of accessible amino groups (functional speciation). The method is based on the interaction of NH2 groups with the
anionic dye acid orange 7 under appropriate conditions (pH ¼ 3.6) and shows good precision. It can be advantageously used for the fast evaluation of the GO-NH2 reactivity with isocyanate monomer and its applicability as the polymer filler.Pracoviště Ústav anorganické chemie Kontakt Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Rok sběru 2017
Počet záznamů: 1