About: Solvent-free synthesis of reactive inorganic precursors for preparation of organic/inorganic hybrid materials

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About: Solvent-free synthesis of reactive inorganic precursors for preparation of organic/inorganic hybrid materials Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Prehydrolyzed-condensed precursors containing amino or glycido groups were prepared via sol gel process without addition of solvent in any step of their preparation. The influence of the experimental set-up, the functionality and ratio of alkoxysilanes, and type of catalyst, on the structure buildup was studied. In the case of amino precursors, the sol–gel process was carried out at weak basic conditions while in the case of glycido precursors the sol–gel process was catalyzed by acid or neutral pH. The systems with high content of tetraethoxysilane led to the fast gel formation. In weak acid medium tetraethoxysilane formed larger, more condensed species as well as small structures with silanol groups. Strong acidic conditions led to the fast formation of insoluble silica particles in liquid (sol) phase containing monomeric alkoxysilanes. Prehydrolyzed-condensed precursors containing amino or glycido groups were prepared via sol gel process without addition of solvent in any step of their preparation. The influence of the experimental set-up, the functionality and ratio of alkoxysilanes, and type of catalyst, on the structure buildup was studied. In the case of amino precursors, the sol–gel process was carried out at weak basic conditions while in the case of glycido precursors the sol–gel process was catalyzed by acid or neutral pH. The systems with high content of tetraethoxysilane led to the fast gel formation. In weak acid medium tetraethoxysilane formed larger, more condensed species as well as small structures with silanol groups. Strong acidic conditions led to the fast formation of insoluble silica particles in liquid (sol) phase containing monomeric alkoxysilanes. (en)
Title	Solvent-free synthesis of reactive inorganic precursors for preparation of organic/inorganic hybrid materials Solvent-free synthesis of reactive inorganic precursors for preparation of organic/inorganic hybrid materials (en)
skos:prefLabel	Solvent-free synthesis of reactive inorganic precursors for preparation of organic/inorganic hybrid materials Solvent-free synthesis of reactive inorganic precursors for preparation of organic/inorganic hybrid materials (en)
skos:notation	RIV/61389013:_____/11:00363826!RIV12-AV0-61389013
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(AV0Z40500505)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Pleštil, Josef Beneš, Hynek
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav makromolekulární chemie AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	230564
http://linked.open...ai/riv/idVysledku	RIV/61389013:_____/11:00363826
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	sol–gel; alkoxysilane; epoxy (en)
http://linked.open.../riv/klicoveSlovo	alkoxysilane sol–gel epoxy
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[97F9CF55E134]
http://linked.open...i/riv/nazevZdroje	Journal of Sol-Gel Science and Technology
http://linked.open...in/vavai/riv/obor	CD
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	59
http://linked.open...iv/tvurceVysledku	Pleštil, Josef Beneš, Hynek Galy, J. Gérard, J. F. Valette, L.
http://linked.open...ain/vavai/riv/wos	000294263000027
http://linked.open...n/vavai/riv/zamer	Progresivní makromolekulární materiály a supramolekulární systémy: syntéza a studium vlastností, jevů a možností využití pro speciální aplikace a moderní technologie
issn	0928-0707
number of pages	15 (xsd:int)
http://bibframe.org/vocab/doi	10.1007/s10971-011-2534-4

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