About: Role of Water as a Coporogen in the Synthesis of Mesoporous Poly(divinylbenzenes)

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About: Role of Water as a Coporogen in the Synthesis of Mesoporous Poly(divinylbenzenes) Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The morphology of mesoporous poly(divinylbenzenes) prepared under so called hydrothermal conditions and with the monomers diluted in 10 times as much porogen solvent (tetrahydrofuran with 0–20% water) was studied in both dry and swollen states, with nitrogen adsorption/desorption and inverse steric exclusion chromatography, respectively. It was found that the pore volume in the polymer examined just after preparation corresponded to the volume of the porogen used. Such a high porosity can be explained only on the basis of pore formation through microsyneresis rather than the macrosyneresis mechanism that is common in the synthesis of conventional porous polymer materials. Naturally, drying induces a pore collapse and the addition of water to the porogen influences the ability of the polymer to regain the original pore volume by reswelling in tetrahydrofuran. The morphology of mesoporous poly(divinylbenzenes) prepared under so called hydrothermal conditions and with the monomers diluted in 10 times as much porogen solvent (tetrahydrofuran with 0–20% water) was studied in both dry and swollen states, with nitrogen adsorption/desorption and inverse steric exclusion chromatography, respectively. It was found that the pore volume in the polymer examined just after preparation corresponded to the volume of the porogen used. Such a high porosity can be explained only on the basis of pore formation through microsyneresis rather than the macrosyneresis mechanism that is common in the synthesis of conventional porous polymer materials. Naturally, drying induces a pore collapse and the addition of water to the porogen influences the ability of the polymer to regain the original pore volume by reswelling in tetrahydrofuran. (en)
Title	Role of Water as a Coporogen in the Synthesis of Mesoporous Poly(divinylbenzenes) Role of Water as a Coporogen in the Synthesis of Mesoporous Poly(divinylbenzenes) (en)
skos:prefLabel	Role of Water as a Coporogen in the Synthesis of Mesoporous Poly(divinylbenzenes) Role of Water as a Coporogen in the Synthesis of Mesoporous Poly(divinylbenzenes) (en)
skos:notation	RIV/67985858:_____/14:00437037!RIV15-AV0-67985858
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(LH12194)
http://linked.open...iv/cisloPeriodika	23
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Jeřábek, Karel Hanková, Libuše Holub, Ladislav
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 chemických procesů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	43217
http://linked.open...ai/riv/idVysledku	RIV/67985858:_____/14:00437037
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	crosslinking; morphology; polystyrene (en)
http://linked.open.../riv/klicoveSlovo	crosslinking morphology polystyrene
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[AA9DAFCD6BFA]
http://linked.open...i/riv/nazevZdroje	Journal of Applied Polymer Science
http://linked.open...in/vavai/riv/obor	CI
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Morphology and application properties of mesoporous (poly)divinylbenzenes.
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	131
http://linked.open...iv/tvurceVysledku	Jeřábek, Karel Meng, X. Xiao, F.-S. Hanková, Libuše Holub, Ladislav
http://linked.open...ain/vavai/riv/wos	000342920100059
issn	0021-8995
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1002/app.41198

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