AMINOSILS: New solid state protonic materials by the sol-gel process

Charbouillot, Y.; Ravaine, D.; Armand, Michel; Poinsignon, C.

doi:10.1016/0022-3093(88)90212-8

Cited by 72 publications

(26 citation statements)

References 3 publications

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“…The molar ratios NH2/Si and HCO3/NH2 were found to be respectively 1.0 and 0.016. In accordance with previous works [5,7], APSTOL was found to be easily soluble in water, forming stable clear solutions with pH values from 10.6 to 11.5 when the silica concentration increased from 0.05 to 25 wt%.…”

Section: Methodssupporting

confidence: 90%

See 1 more Smart Citation

An organic-inorganic silica precursor suitable for the sol-gel synthesis in aqueous media

Maliavski

Душкин

Tchekounova

et al. 1997

J Sol-Gel Sci Technol

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Abstract. Partially polycondensed y-aminopropylsilanetriol (APSTOL) was prepared by hydrolyzing y-aminopropyltriethoxysilane at a hydrolysis ratio 8.0. APSTOL contains up to 52% SiO2 and can be easily dissolved in water, forming clear solutions remaining stable practically at any pH value. The thermal evolution of APSTOL when heating up to 1000~ was examined using TGA and FTIR techniques; the probable mechanism of the oxidative decomposition of organic groups, with the formation of imino-and carboxyl-containing intermediates, has been discussed. Two magnesium silicates of the enstatite and forsterite compositions and two calcium silicates of the wollastonite and rankinite compositions have been prepared, using corresponding acetates and APSTOL as MUo and SiO2 precursors. The crystallization processes in these systems were studied by TGA and XRD techniques, after heat treatments up to 1000~ In all the systems, except rankinite, the parent silicates were found as the main crystalline phases.

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Section: Methodssupporting

confidence: 90%

“…The chemical composition of the hydrolyzates corresponds to partially polycondensed y-aminopropylsilanetriol (APSTOL) and they have already been used in wet-chemistry synthesis of solid ionic conductors [5], cordierite ceramics [6] and protective coatings on glass [7].…”

Section: Introductionmentioning

confidence: 99%

An organic-inorganic silica precursor suitable for the sol-gel synthesis in aqueous media

Maliavski

Душкин

Tchekounova

et al. 1997

J Sol-Gel Sci Technol

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“…In recent years, the research on the synthesis of polymer microspheres has rapidly expanded. They have found applications in the area of dope [14], wave-guide [15], photo electricity [16], and photochromophores. Other studies have also shown that these procedures can be used for the preparation of polymer particles covered with copper and copper compounds [17], zirconium [18], iron [19], and titanium compounds [20] by controlled surface precipitation processes, which makes it possible to extend the use of these colloids to different areas of high technology.…”

Section: Introductionmentioning

confidence: 99%

Silicon dioxide as coating on polystyrene nanoparticles in situ emulsion polymerization

Ding

Jiang

et al. 2004

Materials Letters

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“…This was accomplished with a silsesquioxane (Fig. 3) where the conductivity is based on solid electrolyte chemistry [14,15]. In this work we describe a hole-transporting insulating overcoat that overcomes the limitations of the other approaches.…”

Section: Resultsmentioning

confidence: 98%

Hole-Transporting Silsesquioxanes

Ferrar

Gruenbaum

Molaire

et al. 2009

Silicon

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The fluorene diol (I) has been chemically incorporated into a sol-gel formulation that was coated to produce a thin overcoat on an organic photoreceptor and cured into a silsesquioxane matrix that efficiently transports holes. The residual potential of the photoreceptor decreased as the amount of hole transport material (I) incorporated into the silsesquioxane matrix was increased. The charge transport was independent of humidity. At 30 wt.% the residual potential is identical to that of a photoreceptor without an overcoat. This methodology produces an organic photoreceptor with a protective overcoat without compromising the electrophotographic characteristics.

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AMINOSILS: New solid state protonic materials by the sol-gel process

Cited by 72 publications

References 3 publications

An organic-inorganic silica precursor suitable for the sol-gel synthesis in aqueous media

An organic-inorganic silica precursor suitable for the sol-gel synthesis in aqueous media

Silicon dioxide as coating on polystyrene nanoparticles in situ emulsion polymerization

Hole-Transporting Silsesquioxanes

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