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Téllez, L.; Rubio, J.; Rubio, F.; Morales, E.; Oteo, J. L.

doi:10.1023/a:1023240129477

Cited by 69 publications

(12 citation statements)

References 12 publications

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“…19 The other strategy is to incorporate inorganic domains into oligosiloxane matrix by chemical bond where inorganic elements are connected to organic moieties on a molecular lever. [20][21][22][23][24][25][26][27] But it's complicated and difficult to synthesize homogenous and stable oligosiloxane resin with Si-O-M (M ¼ Ti, Zr, Al etc.) bonds by means of the conventional sol-gel process, because of the signicant difference between the hydrolysis rates of the metal alkoxides and silicone analogues.…”

Section: Introductionmentioning

confidence: 99%

A facile method for fabrication of titanium-doped hybrid materials with high refractive index

et al. 2014

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This paper presents a facile route to prepare a series of high refractive index and homogeneous hybrid resins with titanium in the backbone by a non-hydrolytic sol-gel process. The confirmation of the condensation reaction and the formation of Si-O-Ti hetero-metal bonds in the hybrid resins were conducted by FT-IR spectroscopy, FT-Raman spectroscopy and liquid state 29 Si-NMR spectroscopy. In addition, the molecular weight and molecular size of the hybrid resin were characterized by MALDI-TOF MS and small-angle X-ray scattering (SAXS), respectively. These results show that the content of Si-O-Ti bridges, condensation degree of precursors and molecular weight and size of these hybrid resins increase depending on the TPT content from 0 to 30%. Moreover, the refractive index of the hybrid resin varied from 1.57 to 1.62 with increasing TPT content and the hybrid resin was thermally cured by hydrosilylation in the presence of a Pt catalyst to fabricate a transparent TSR hybrid film. These experimental results demonstrated that the physical and chemical properties of these hybrid films, such as visible transparency, surface roughness and surface energy, dielectric constant, thermal stability and glass transition temperature were investigated as a function of the chemical composition.

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Section: Introductionmentioning

confidence: 99%

A facile method for fabrication of titanium-doped hybrid materials with high refractive index

et al. 2014

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“…This means that HSNP-2 is more hydrophobic than HSNP-1. Moreover, the appearance of the band at 865 cm −1 in Figure 3 (Si-OH stretching band) confirms the covalent bonding of Si–OH groups produced from the hydrolysis of the ether groups of TEOS with the silicone precursors to form silica nanoparticles [38]. The disappearance of the band at 960 cm −1 (Si-OH stretching) also confirms that the HSNPs are formed via Si–O–Si bonding.…”

Section: Discussionmentioning

confidence: 67%

Novel Superhydrophobic Sand and Polyurethane Sponge Coated with Silica/Modified Asphaltene Nanoparticles for Rapid Oil Spill Cleanup

et al. 2019

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Superhydrophobic nanomaterials are promising in the important pursuit to alleviate the environmental pollution caused by the petroleum crude oil industry, especially to clean-up oil spills. In this work, asphaltenes isolated from crude oil were modified to act as capping agents during the synthesis of hydrophobic silica nanoparticles (HSNPs). The chemical structure, surface morphology, particle size, and surfaces charge of HSNPs were investigated. The contact angles of water droplets on HSNP film surfaces were measured to investigate their wetting properties. Finally, superhydrophobic sand and polyurethane sponge were prepared by coating them with HSNPs and applied in the cleanup of oil spills of viscous heavy Arabian crude oil.

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“…The flexural vibration of the H-O-H group is at 1639 cm 21 , which is related with the constitution water; the absorption peak of 1450 cm 21 is the C-O vibration in the group of CO 2{ 3 . 6 The absorption peak of 2862-2922 cm 21 is the flexural vibrations of the group -CH 2 -, which does not exist in the curves b and c, as the group was died out at the heat treatment temperature 650uC. In the curve a, the absorption peak of 1075 cm 21 is eigen vibration for the chemical bond of the Ti-O-C, which results from the TiO 2 reacted with the dissociative C in the surface organic group at the room temperature.…”

Section: Resultsmentioning

confidence: 99%

Effect of TiO₂films on diamond: oxidation resistance and wear performance

Liu

Long

et al. 2009

Advances in Applied Ceramics

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In order to substitute the traditional electroplate which caused electricity wastage and contamination, the TiO 2 film/C (diamond) were prepared by the sol-gel method. The micrograph, structure and properties of TiO 2 film/C were studied using scanning electron microscopy, energy dispersive spectroscopy, Fourier transform infrared spectroscopy, Fourier-Raman and thermogravimetry-differential scanning calorimetry. The results showed that the oxidation temperature of the coated TiO 2 diamond in the air was 650uC, which is higher 150uC than that of the uncoated diamond. For the coated TiO 2 diamond vitrified bond grinding wheel, compared with the uncoated diamond vitrified bond grinding wheel, the hardness was increased 13% and the grinding ratio to the carbide (WC-6 wt-%Co) was also increased 220%.

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Untitled

Cited by 69 publications

References 12 publications

A facile method for fabrication of titanium-doped hybrid materials with high refractive index

A facile method for fabrication of titanium-doped hybrid materials with high refractive index

Novel Superhydrophobic Sand and Polyurethane Sponge Coated with Silica/Modified Asphaltene Nanoparticles for Rapid Oil Spill Cleanup

Effect of TiO₂films on diamond: oxidation resistance and wear performance

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Untitled

Cited by 69 publications

References 12 publications

A facile method for fabrication of titanium-doped hybrid materials with high refractive index

A facile method for fabrication of titanium-doped hybrid materials with high refractive index

Novel Superhydrophobic Sand and Polyurethane Sponge Coated with Silica/Modified Asphaltene Nanoparticles for Rapid Oil Spill Cleanup

Effect of TiO2films on diamond: oxidation resistance and wear performance

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Effect of TiO₂films on diamond: oxidation resistance and wear performance