Determination of amino groups on functionalized graphene oxide for polyurethane nanomaterials: XPS quantitation vs. functional speciation

Ederer, J.; Janoš, P.; Ecorchard, Petra; Tolasz, Jakub; Štengl, Václav; Beneš, Hynek; Perchacz, Magdalena; Pop-Georgievski, Ognen

doi:https://dx.doi.org/10.1039/c6ra28745j

Number of the records: 1

Determination of amino groups on functionalized graphene oxide for polyurethane nanomaterials: XPS quantitation vs. functional speciation

1.

SYSNO ASEP	0472004
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Determination of amino groups on functionalized graphene oxide for polyurethane nanomaterials: XPS quantitation vs. functional speciation
Author(s)	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, ORCID}
Source Title	RSC Advances. - : Royal Society of Chemistry Roč. 7, č. 21 (2017), s. 12464-12473
Number of pages	10 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	Polyurethane nanocomposites ; Spectro-photometric method ; Polymer-filler
Subject RIV	CA - Inorganic Chemistry
OECD category	Inorganic and nuclear chemistry
Subject RIV - cooperation	Institute of Macromolecular Chemistry - Macromolecular Chemistry
R&D Projects	GA14-05146S GA ČR - Czech Science Foundation (CSF)
Institutional support	UACH-T - RVO:61388980 ; UMCH-V - RVO:61389013
UT WOS	000395934500004
EID SCOPUS	85014148614
DOI	10.1039/c6ra28745j
Annotation	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.
Workplace	Institute of Inorganic Chemistry
Contact	Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931
Year of Publishing	2017

Number of the records: 1