Near Edge X‐Ray Absorption Fine Structure (NEXAFS) Studies of Copper Ion‐Containing PAMAMOS Dendrimer Networks
作者： Robert A. Bubeck , Petar R. Dvornic , Jin Hu , Alexander Hexemer , Xuefa Li
关键词: Absorption (chemistry) 、 Polymer chemistry 、 Copper 、 Edge (geometry) 、 Nanocomposite 、 X-ray absorption fine structure 、 Analytical chemistry 、 XANES 、 Crystallography 、 Materials science 、 Ion 、 Dendrimer
摘要: The interaction of Cu 2+ with C, N and O moieties in nanocomposites containing copper ions complexed poly(amidoamine-organosilicon), PAMAMOS, dendrimer networks was characterized using near edge X-ray absorption fine structure (NEXAFS). effects on the 1s → π* Is σ* orbital transitions were determined at K edges. influence π*(N-H) 401 eV, σ*(N-C) type 412 eV within increased increasing content up to theoretical limit copper-accommodating capacity PAMAMOS used. As ligands, carbonyls found saturate much lower concentrations compared those associated N.
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