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Solvent-free synthesis of reactive inorganic precursors for preparation of organic/inorganic hybrid materials
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SYSNO ASEP 0363826 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Solvent-free synthesis of reactive inorganic precursors for preparation of organic/inorganic hybrid materials Tvůrce(i) Beneš, Hynek (UMCH-V) RID, ORCID
Galy, J. (FR)
Gérard, J. F. (FR)
Pleštil, Josef (UMCH-V) RID
Valette, L. (US)Zdroj.dok. Journal of Sol-Gel Science and Technology. - : Springer - ISSN 0928-0707
Roč. 59, č. 3 (2011), s. 598-612Poč.str. 15 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova sol–gel ; alkoxysilane ; epoxy Vědní obor RIV CD - Makromolekulární chemie CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000294263000027 DOI 10.1007/s10971-011-2534-4 Anotace 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. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2012
Počet záznamů: 1