About: Epoxy-silica hybrids by nonaqueous sol-gel process

Facets (new session)
Description
Metadata
Settings
- owl:sameAs
- Inference Rule:

About: Epoxy-silica hybrids by nonaqueous sol-gel process Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	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 crosslinking through the formed silica domains was proved. The hybrid hierarchical structure and morphology were determined by NMR, SAXS, TEM and DMA. 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 crosslinking through the formed silica domains was proved. The hybrid hierarchical structure and morphology were determined by NMR, SAXS, TEM and DMA. (en)
Title	Epoxy-silica hybrids by nonaqueous sol-gel process Epoxy-silica hybrids by nonaqueous sol-gel process (en)
skos:prefLabel	Epoxy-silica hybrids by nonaqueous sol-gel process Epoxy-silica hybrids by nonaqueous sol-gel process (en)
skos:notation	RIV/61389013:_____/13:00397559!RIV14-GA0-61389013
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP108/12/1459)
http://linked.open...iv/cisloPeriodika	23
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Matějka, Libor Brus, Jiří Kobera, Libor Ponyrko, Sergii
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav makromolekulární chemie AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	73130
http://linked.open...ai/riv/idVysledku	RIV/61389013:_____/13:00397559
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	epoxy-silica hybrid; nonaqueous sol-gel process; gelation (en)
http://linked.open.../riv/klicoveSlovo	epoxy-silica hybrid nonaqueous sol-gel process gelation
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[8E6B915F917D]
http://linked.open...i/riv/nazevZdroje	Polymer
http://linked.open...in/vavai/riv/obor	CD
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Advanced smart polymer materials
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	54
http://linked.open...iv/tvurceVysledku	Matějka, Libor Brus, Jiří Kobera, Libor Ponyrko, Sergii
http://linked.open...ain/vavai/riv/wos	000326140800002
issn	0032-3861
number of pages	12 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.polymer.2013.09.034

Faceted Search & Find service v1.16.118 as of Jun 21 2024

Alternative Linked Data Documents: ODE Content Formats:

RDF

ODATA

Microdata

About

OpenLink Virtuoso version 07.20.3240 as of Jun 21 2024, on Linux (x86_64-pc-linux-gnu), Single-Server Edition (126 GB total memory, 48 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software