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Statements

Subject Item
n2:RIV%2F61389013%3A_____%2F06%3A00032080%21RIV06-AV0-61389013
rdf:type
n16:Vysledek skos:Concept
dcterms:description
Byla studována silanizace skleněných makroporézních mikrovláken (3-aminopropyl)triethoxysilanem (APTES) a následující navázání [2-(3,4-epoxycyclohexyl)ethyl]heptaisobutyloktasilseskvioxanu (E-POSS) na aminové skupiny mikrovláken. XPS spektra ukázala, že mikrovlákna se sorbovanou kyselinou kovalentně naváží o 42 % více APTES a potom o 65 % více E-POSS než mikrovlákna se sorbovaným amoniakem. Modelové výpočty (za předpokladu siliky jako matrice, úplné hydrolýzy ethoxy skupin a vertikální kondenzace APTES) ukázaly, že na povrchu vzniká většinou dvojvrstva APTES. Silanization of macroporous glass microfiber filters with (3-aminopropyl)triethoxysilane (APTES) and subsequent binding of [2-(3,4-epoxycyclohexyl)ethyl]heptaisobutyloctasilsesquioxane (E-POSS) to the amine-terminated surface of microfibers was studied. It was proved by XPS that microfibers with the adsorbed acid take up higher amounts of covalently attached APTES by 42% and, subsequently, of E-POSS by 65% than microfibers with the adsorbed ammonia. The molecular mechanics model calculations, which were made using silica as a template, have shown that approximately two-layered APTES coating can be built on the model surface if complete hydrolysis of ethoxy groups and vertical condensation of APTES species are assumed. Silanization of macroporous glass microfiber filters with (3-aminopropyl)triethoxysilane (APTES) and subsequent binding of [2-(3,4-epoxycyclohexyl)ethyl]heptaisobutyloctasilsesquioxane (E-POSS) to the amine-terminated surface of microfibers was studied. It was proved by XPS that microfibers with the adsorbed acid take up higher amounts of covalently attached APTES by 42% and, subsequently, of E-POSS by 65% than microfibers with the adsorbed ammonia. The molecular mechanics model calculations, which were made using silica as a template, have shown that approximately two-layered APTES coating can be built on the model surface if complete hydrolysis of ethoxy groups and vertical condensation of APTES species are assumed.
dcterms:title
Surface-deposited acid/base on glass microfibers in formation of (3-aminopropyl)triethoxysilane-[2-(3,4-epoxycyclohexyl)ethyl]heptaisobutyloctasilsesquioxane bioverlay Surface-deposited acid/base on glass microfibers in formation of (3-aminopropyl)triethoxysilane-[2-(3,4-epoxycyclohexyl)ethyl]heptaisobutyloctasilsesquioxane bioverlay Vznik povrchové dvojvrstvy (3-aminopropyl)triethoxysilanu-[2-(3,4-epoxycyclohexyl)ethyl]heptaisobutyloktasilsesviioxanu prostřednictvím skleněných mikrovláken s povrchem tvořeným systémem kyselina/zásada
skos:prefLabel
Surface-deposited acid/base on glass microfibers in formation of (3-aminopropyl)triethoxysilane-[2-(3,4-epoxycyclohexyl)ethyl]heptaisobutyloctasilsesquioxane bioverlay Surface-deposited acid/base on glass microfibers in formation of (3-aminopropyl)triethoxysilane-[2-(3,4-epoxycyclohexyl)ethyl]heptaisobutyloctasilsesquioxane bioverlay Vznik povrchové dvojvrstvy (3-aminopropyl)triethoxysilanu-[2-(3,4-epoxycyclohexyl)ethyl]heptaisobutyloktasilsesviioxanu prostřednictvím skleněných mikrovláken s povrchem tvořeným systémem kyselina/zásada
skos:notation
RIV/61389013:_____/06:00032080!RIV06-AV0-61389013
n4:strany
3633;3639
n4:aktivita
n6:Z n6:P
n4:aktivity
P(GA203/02/1327), Z(AV0Z40500505)
n4:cisloPeriodika
8
n4:dodaniDat
n9:2006
n4:domaciTvurceVysledku
n5:6965644 n5:1518755 n5:2613549 n5:7631464 n5:1727079 Tishchenko, Galina
n4:druhVysledku
n10:J
n4:duvernostUdaju
n7:S
n4:entitaPredkladatele
n11:predkladatel
n4:idSjednocenehoVysledku
502563
n4:idVysledku
RIV/61389013:_____/06:00032080
n4:jazykVysledku
n14:eng
n4:klicovaSlova
silanization; (3-amonipropyl)triethoxysilanes; epoxycyclohexylisobutyl polyhedral oligomeric silsesquioxane
n4:klicoveSlovo
n12:%283-amonipropyl%29triethoxysilanes n12:silanization n12:epoxycyclohexylisobutyl%20polyhedral%20oligomeric%20silsesquioxane
n4:kodStatuVydavatele
US - Spojené státy americké
n4:kontrolniKodProRIV
[6076AD740FA0]
n4:nazevZdroje
Langmuir
n4:obor
n17:CD
n4:pocetDomacichTvurcuVysledku
6
n4:pocetTvurcuVysledku
7
n4:projekt
n18:GA203%2F02%2F1327
n4:rokUplatneniVysledku
n9:2006
n4:svazekPeriodika
22
n4:tvurceVysledku
Dybal, Jiří Pekárek, Michal Bleha, Miroslav Brus, Jiří Tishchenko, Galina Bastl, Zdeněk Sedláková, Zdeňka
n4:zamer
n15:AV0Z40500505
s:issn
0743-7463
s:numberOfPages
7