Influence of sol-gel conditions on the final structure of silica-based precursors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F15%3A00446152" target="_blank" >RIV/61389013:_____/15:00446152 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10971-015-3735-z" target="_blank" >http://dx.doi.org/10.1007/s10971-015-3735-z</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10971-015-3735-z" target="_blank" >10.1007/s10971-015-3735-z</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of sol-gel conditions on the final structure of silica-based precursors

Popis výsledku v původním jazyce

This work studied the solvent-free sol?gel process of (3-glycidyloxypropyl)trimethoxysilane using three different experimental setups and a ternary amine (DABCO) or a tin-based compound (DBTL) as the sol?gel catalysts, which allowed to prepare homogeneous liquid products and control their final microstructures. The aim was to synthesize epoxy-functionalized precursors for hybrid MALDI-TOF, DLS, FTIR and SEC were used to characterize the obtained sols and xerogels. The formed silica structures were primarily dependent on the type of catalyst used, but small cyclic structures were always present. Nevertheless, the DABCO-catalyzed system showed a higher tendency to create cage-like structures in contrast to the system that used DBTL catalyst in which larger ladderlike structures prevailed. The sols as well as the final xerogels with the higher condensation degree of alkoxysilane bonds were prepared under the basic (DABCO) conditions. All prepared liquid products (sols) were well miscible

Název v anglickém jazyce

Influence of sol-gel conditions on the final structure of silica-based precursors

Popis výsledku anglicky

This work studied the solvent-free sol?gel process of (3-glycidyloxypropyl)trimethoxysilane using three different experimental setups and a ternary amine (DABCO) or a tin-based compound (DBTL) as the sol?gel catalysts, which allowed to prepare homogeneous liquid products and control their final microstructures. The aim was to synthesize epoxy-functionalized precursors for hybrid MALDI-TOF, DLS, FTIR and SEC were used to characterize the obtained sols and xerogels. The formed silica structures were primarily dependent on the type of catalyst used, but small cyclic structures were always present. Nevertheless, the DABCO-catalyzed system showed a higher tendency to create cage-like structures in contrast to the system that used DBTL catalyst in which larger ladderlike structures prevailed. The sols as well as the final xerogels with the higher condensation degree of alkoxysilane bonds were prepared under the basic (DABCO) conditions. All prepared liquid products (sols) were well miscible

Druh

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

CEP obor

CA - Anorganická chemie

OECD FORD obor

—

Projekt

<a href="/cs/project/GA14-05146S" target="_blank" >GA14-05146S: Studium interakcí grafen – iontová kapalina a jejich využití pro prípravu polymerních kompozitů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

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

75

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

15

Strana od-do

649-663

Kód UT WoS článku

000359360500017

EID výsledku v databázi Scopus

2-s2.0-84937515069