Preparation and characterization of organic/inorganic hybrid epoxy networks from reactive inorganic precursors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F12%3A00376307" target="_blank" >RIV/61389013:_____/12:00376307 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1002/app.36296" target="_blank" >http://dx.doi.org/10.1002/app.36296</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/app.36296" target="_blank" >10.1002/app.36296</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Preparation and characterization of organic/inorganic hybrid epoxy networks from reactive inorganic precursors

Popis výsledku v původním jazyce

Organic/inorganic hybrid networks were prepared by a novel solvent-free two-step synthesis method. In the first step, prehydrolyzed?condensed reactive inorganic precursors (clusters) were prepared by a sol?gel process from monomeric alkoxysilanes with amino and glycido groups. The second step comprised their addition into epoxy resin and amine hardener, followed by the reaction of all components giving the final hybrid crosslinked materials. The morphology of the organic/inorganic hybrid structures formed from glycidoprecursor revealed spherical silica-rich domains forming agglomerates with diameter from 100 to 500 nm. The aminoprecursor led to large highly condensed and branched silicon-rich structures. The hybrid networks showed significantly improved thermomechanical properties and better resistance against thermooxidation when compared with the neat epoxy?amine network. Thin films as well as bulk materials were successfully prepared by this process.

Název v anglickém jazyce

Preparation and characterization of organic/inorganic hybrid epoxy networks from reactive inorganic precursors

Popis výsledku anglicky

Organic/inorganic hybrid networks were prepared by a novel solvent-free two-step synthesis method. In the first step, prehydrolyzed?condensed reactive inorganic precursors (clusters) were prepared by a sol?gel process from monomeric alkoxysilanes with amino and glycido groups. The second step comprised their addition into epoxy resin and amine hardener, followed by the reaction of all components giving the final hybrid crosslinked materials. The morphology of the organic/inorganic hybrid structures formed from glycidoprecursor revealed spherical silica-rich domains forming agglomerates with diameter from 100 to 500 nm. The aminoprecursor led to large highly condensed and branched silicon-rich structures. The hybrid networks showed significantly improved thermomechanical properties and better resistance against thermooxidation when compared with the neat epoxy?amine network. Thin films as well as bulk materials were successfully prepared by this process.

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

2012

Kód důvěrnosti údajů

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

Název periodika

Journal of Applied Polymer Science

ISSN

0021-8995

e-ISSN

—

Svazek periodika

125

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

1000-1011

Kód UT WoS článku

000302350300021

EID výsledku v databázi Scopus

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