New TiO2 precursor for TiO2: poly(N-vinylcarbazole) (PVK) thin film : Synthesis and reactivity to hydrolysis of titanium tetrakis (9H-carbazole-9-yl-ethyl-oxy)
| Autor: | Vincent Barlier, Véronique Bounor-Legaré, Joel Davenas, Didier Léonard, Fernande Boisson, Gisèle Boiteux |
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| Přispěvatelé: | Ingénierie des Matériaux Polymères - Laboratoire des Matériaux Polymères et des Biomatériaux (IMP-LMPB), Centre National de la Recherche Scientifique (CNRS)-Université Jean Monnet [Saint-Étienne] (UJM)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut de Chimie du CNRS (INC), Sciences Analytiques (SA), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Ingénierie des Matériaux Polymères - Laboratoire des Matériaux Macromoléculaires (IMP-LMM), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université Jean Monnet [Saint-Étienne] (UJM)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
Analytical chemistry
chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Electronic Optical and Magnetic Materials chemistry.chemical_compound [CHIM.POLY]Chemical Sciences/Polymers chemistry X-ray photoelectron spectroscopy Transition metal Alkoxide Polymer chemistry Materials Chemistry Ceramics and Composites Reactivity (chemistry) Thin film Titanium isopropoxide 0210 nano-technology Sol-gel Titanium |
| Zdroj: | Journal of Non-Crystalline Solids Journal of Non-Crystalline Solids, Elsevier, 2009, 335 (6), pp.386-392. ⟨10.1016/j.jnoncrysol.2008.12.007⟩ |
| ISSN: | 0022-3093 |
| DOI: | 10.1016/j.jnoncrysol.2008.12.007⟩ |
| Popis: | International audience; The chemical reactivity of the ligand initially coordinated on the TiO2 precursor plays a decisive role in the morphology of TiO2:poly(N-vinylcarbazole) (PVK) thin film elaborated by in situ generation of the inorganic phase in the polymer matrix. The final aim of this study is to prepare a new nanocomposite TiO2:poly(N-vinylcarbazole) (PVK) thin film from hydrolysis-condensation of titanium alkoxide in polymer thin film. In this context, we synthesized a new TiO2 precursor, the tetrakis (9H-carbazole-9-yl-ethyl-oxy) [Ti(OeCarb)4], bearing ligands close to the repetitive unit structure of the PVK to improve the interaction between both materials. In this study, the synthesis and reactivity to hydrolysis of Ti(OeCarb)4 is presented. Ti(OeCarb)4 was elaborated from alcoholysis reaction between titanium isopropoxide [Ti(iOPr)4] and 9H-carbazole-9-ethanol (ECOH) and identified by 1H and 13C NMR spectroscopy. The reactivity to hydrolysis-oxolation of Ti(OeCarb)4 was evaluated first in aqueous media by in situ 1H NMR spectroscopy analysis. Moreover, reactivity of Ti(OeCarb)4 to surrounding humidity was evaluated in thin film by X-ray photoelectron spectroscopy (XPS). Results show that steric hindrance of 9H-carbazole-9-yl-ethyl-oxide ligands do not influence the hydrolysis-condensation process in aqueous media in our experimental conditions when compared to [Ti(iOPr)4] but decrease the reactivity when the precursor is simply exposed to air humidity. |
| Databáze: | OpenAIRE |
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