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Novel homogeneous gel fibers and capillaries from blend of titanium tetrabutoxide and siloxane functionalized ionic liquid
- Source :
- Ceramics International. 40:7729-7735
- Publication Year :
- 2014
- Publisher :
- Elsevier BV, 2014.
-
Abstract
- The preparation of ionogels by sol–gel processing has attracted much attention, because the final ceramic materials combine properties of both inorganic matrix (thermal and mechanical stability) and the ionic liquid (ionic conductivity). The aim of this study was to combine different imidazolium based ionic liquids (1-ethyl-3-methylimidazolium tetrafluoroborate [EMIM][BF 4 ], 1-butyl-3-methyl imidazolium tetrafluoroborate [BMIM][BF 4 ], 1-decyl-3-methylimidazolium tetrafluoroborate [DMIM][BF 4 ] and 1-methyl-3-[3′-(triethoxysilyl)propyl]imidazolium chloride MTICl) with titanium(IV) butoxide to prepare homogenous hybrid fibers through aqueous sol–gel reaction. The study showed that ionic liquid miscibility with metal alkoxide plays an important role in the preparation of homogenous fibers. Unlike simple imidazolium salts functionalized ionic liquid was dispersed homogenously in fibers, but the main advantage is derived from its chemical structure. New stable ionic liquid can be involved in sol–gel processes through ethoxy groups and as a result it associates with titanium alkoxide network by covalent bonding providing non-leaking ceramic hybrid material. Indirect and direct characterization studies of the product were carried out by energy-dispersive X-ray spectroscopy (EDX), silicon-29 nuclear magnetic resonance spectroscopy ( 29 Si NMR), scanning electron microscopy (SEM) and optical microscopies; also infrared spectra (IR) were recorded. Thermal analyses were performed by differential scanning calorimetry (DSC).
- Subjects :
- Materials science
Tetrafluoroborate
Process Chemistry and Technology
Inorganic chemistry
Infrared spectroscopy
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
chemistry.chemical_compound
chemistry
Chemical engineering
visual_art
Alkoxide
Ionic liquid
Materials Chemistry
Ceramics and Composites
visual_art.visual_art_medium
Ionic conductivity
Ceramic
Hybrid material
Sol-gel
Subjects
Details
- ISSN :
- 02728842
- Volume :
- 40
- Database :
- OpenAIRE
- Journal :
- Ceramics International
- Accession number :
- edsair.doi...........c850d58b90b56e9b23fa16cbbe7f1a56