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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F11%3A00363826" target="_blank" >RIV/61389013:_____/11:00363826 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10971-011-2534-4" target="_blank" >http://dx.doi.org/10.1007/s10971-011-2534-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10971-011-2534-4" target="_blank" >10.1007/s10971-011-2534-4</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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. Thesystems 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 formationof insoluble silica particles in liquid (sol) phase containing monomeric alkoxysilanes.

Název v anglickém jazyce

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

Popis výsledku anglicky

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. Thesystems 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 formationof insoluble silica particles in liquid (sol) phase containing monomeric alkoxysilanes.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Sol-Gel Science and Technology

ISSN

0928-0707

e-ISSN

—

Svazek periodika

59

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

15

Strana od-do

598-612

Kód UT WoS článku

000294263000027

EID výsledku v databázi Scopus

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