Optical Properties of Some Fluorinated Poly(1,3,4-Oxadiazole-Ether)s in Homogeneous and Heterogeneous Media. Changes Induced by SnO2, NiO and SnO2/NiO Mixed-Oxide Nanoparticles

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Optical Properties of Some Fluorinated Poly(1,3,4-Oxadiazole-Ether)s in Homogeneous and Heterogeneous Media. Changes Induced by SnO2, NiO and SnO2/NiO Mixed-Oxide Nanoparticles

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作者：Mihaela Homocianu ; Anton Airinei ; Alina Mirela Ipate…
关键词：SnO2 ; NiO and SnO2/NiO nanoparticles ; Fluorinated poly(1 ; 3 ; 4 ; oxadiazole ; ether)s ; Absorption and fluorescence spectra ; Heterogeneous media
刊名：Journal of Fluorescence
出版年：2016
出版时间：January 2016
年：2016
卷：26
期：1
页码：217-224
全文大小：822 KB
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作者单位：Mihaela Homocianu (1)
Anton Airinei (1)
Alina Mirela Ipate (1)
Petronela Pascariu Dorneanu (1)
Corneliu Hamciuc (1)

1. “Petru Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487, Iasi, Romania
刊物类别：Biomedical and Life Sciences
刊物主题：Biomedicine
Biomedicine
Biophysics and Biomedical Physics
Biotechnology
Biochemistry
Analytical Chemistry
出版者：Springer Netherlands
ISSN：1573-4994

文摘

Optical characteristics of some fluorinated poly(1,3,4-oxadiazole-ether)s in presence of SnO₂, NiO and SnO₂/NiO mixed-oxide nanoparticles (NPs) was investigated. The interactions between polymers and metal oxide NPs were studied by steady-state UV-Vis absorption and fluorescence spectroscopy techniques. The absorption and fluorescence signals of all investigated polymers was modified by presence of both pure and mixed-oxide nanoparticles. The moderate values of Stern-Volmer quenching constant and non-linear trend of Scott plot indicate the less affinity between metal oxide NPs and polymers. The solvation behavior of some fluorinated poly(1,3,4-oxadiazole-ether)s in chloroform–N,N-dimethylformamide and N,N-dimethylformamide-dimethylsulfoxide mixtures was discussed. Keywords SnO₂, NiO and SnO₂/NiO nanoparticles Fluorinated poly(1,3,4-oxadiazole-ether)s Absorption and fluorescence spectra Heterogeneous media