Epoxy-silica hybrids by nonaqueous sol-gel process

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F13%3A00397559" target="_blank" >RIV/61389013:_____/13:00397559 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.polymer.2013.09.034" target="_blank" >http://dx.doi.org/10.1016/j.polymer.2013.09.034</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.polymer.2013.09.034" target="_blank" >10.1016/j.polymer.2013.09.034</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Epoxy-silica hybrids by nonaqueous sol-gel process

Popis výsledku v původním jazyce

The epoxy-silica hybrids have been prepared by the non-aqueous sol?gel process and the in situ generation of nanosilica from tetraethoxysilane was initiated with borontrifluoride monoethylamine (BF3MEA). The DGEBA based epoxy networks with aliphatic, cycloaliphatic and aromatic amines were used as matrices. The solventless technique made it possible to avoid drawbacks of the classical aqueous procedure. The ?non-aqueous systems show improved homogeneity and thermomechanical properties in particular at the application of the coupling agent glycidyloxypropyl trimethoxysilane. Mechanism of the non-aqueous sol?gel process under BF3MEA action and evolution of the hybrid structure during polymerization, followed by chemorheology, are discussed. The nanosilica structure growth is slower under the non-aqueous procedure thus facilitating a better structure control. The hybrids with both particulate and bicontinuous morphologies were prepared and the epoxy-silica interphase bonding and crosslink

Název v anglickém jazyce

Epoxy-silica hybrids by nonaqueous sol-gel process

Popis výsledku anglicky

The epoxy-silica hybrids have been prepared by the non-aqueous sol?gel process and the in situ generation of nanosilica from tetraethoxysilane was initiated with borontrifluoride monoethylamine (BF3MEA). The DGEBA based epoxy networks with aliphatic, cycloaliphatic and aromatic amines were used as matrices. The solventless technique made it possible to avoid drawbacks of the classical aqueous procedure. The ?non-aqueous systems show improved homogeneity and thermomechanical properties in particular at the application of the coupling agent glycidyloxypropyl trimethoxysilane. Mechanism of the non-aqueous sol?gel process under BF3MEA action and evolution of the hybrid structure during polymerization, followed by chemorheology, are discussed. The nanosilica structure growth is slower under the non-aqueous procedure thus facilitating a better structure control. The hybrids with both particulate and bicontinuous morphologies were prepared and the epoxy-silica interphase bonding and crosslink

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

<a href="/cs/project/GAP108%2F12%2F1459" target="_blank" >GAP108/12/1459: Pokročilé inteligentní polymerní materiály</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Polymer

ISSN

0032-3861

e-ISSN

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Svazek periodika

54

Číslo periodika v rámci svazku

23

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

6271-6282

Kód UT WoS článku

000326140800002

EID výsledku v databázi Scopus

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