About: Porogenic Solvents Influence on Morphology of 4-Vinylbenzyl Chloride Based polyHIPEs     Goto   Sponge   Distinct   Permalink

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

AttributesValues
rdf:type
Description
  • Materiály typu polyHIPE polymerů byly připraveny z koncentrovaných emulzí obsahujícícj 4-vinylbenzil chlorid jako reaktivní monomer a divinylbenzen jako zesíťující činidlo. Emulze se skládaly z 80 obj. % vodné fáze (voda, chlorid vápenatý, iniciátor) a 20 obj. % organické fáze (monomery, surfaktant Span 80 a porogen). Po přečištění připravených polymerů byla jejich morfologie zkoumána rastrovací elektronovou mikroskopií, sorpcí/desorpcí dusíku a inverzní exkluzní chromatografií (ISEC). Bylo zjištěno, že přídavek porogenů nijak podstatně nezlepšuje porozitu suchých materiálů avšak podle zjištění metodou ISEC výrazně zlepšuje mikroporozitu ve zbobtnalém stavu. Porozitu také ovlivňoval způsob sušení (cs)
  • Poly(high internal phase emulsion) materials were prepared from concentrated emulsions containing 4-vinylbenzyl chloride as the reactive monomer and divinylbenzene as the cross-linker. Emulsions consisted of 80 vol. % aqueous phase (water, CaCl2, initiator) and 20 vol. % of organic phase (monomers, surfactant Span 80 and a porogenic solvent). Polymerized samples were purified and investigated for morphology and porosity by scanning electron microscopy, nitrogen adsorption/ desorption and inverse steric exclusion chromatography (ISEC). It was found that no substantial additional dry porosity was achieved by the addition of solvents (as determined by nitrogen adsorption) while wet microporosity was substantially improved as determined by the ISEC method. The process of drying the polyHIPE materials also influenced the wet porosity.
  • Poly(high internal phase emulsion) materials were prepared from concentrated emulsions containing 4-vinylbenzyl chloride as the reactive monomer and divinylbenzene as the cross-linker. Emulsions consisted of 80 vol. % aqueous phase (water, CaCl2, initiator) and 20 vol. % of organic phase (monomers, surfactant Span 80 and a porogenic solvent). Polymerized samples were purified and investigated for morphology and porosity by scanning electron microscopy, nitrogen adsorption/ desorption and inverse steric exclusion chromatography (ISEC). It was found that no substantial additional dry porosity was achieved by the addition of solvents (as determined by nitrogen adsorption) while wet microporosity was substantially improved as determined by the ISEC method. The process of drying the polyHIPE materials also influenced the wet porosity. (en)
Title
  • Porogenic Solvents Influence on Morphology of 4-Vinylbenzyl Chloride Based polyHIPEs
  • Vliv porogenů na morfologii polyHIPE polymerů na bázi 4-vinylbenzylchloridu (cs)
  • Porogenic Solvents Influence on Morphology of 4-Vinylbenzyl Chloride Based polyHIPEs (en)
skos:prefLabel
  • Porogenic Solvents Influence on Morphology of 4-Vinylbenzyl Chloride Based polyHIPEs
  • Vliv porogenů na morfologii polyHIPE polymerů na bázi 4-vinylbenzylchloridu (cs)
  • Porogenic Solvents Influence on Morphology of 4-Vinylbenzyl Chloride Based polyHIPEs (en)
skos:notation
  • RIV/67985858:_____/08:00310259!RIV09-AV0-67985858
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(1P05ME740), Z(AV0Z40720504)
http://linked.open...iv/cisloPeriodika
  • 10
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 387560
http://linked.open...ai/riv/idVysledku
  • RIV/67985858:_____/08:00310259
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • concentrated emulsions; morphology; porosity (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [507DCE9D86DE]
http://linked.open...i/riv/nazevZdroje
  • Macromolecules
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 41
http://linked.open...iv/tvurceVysledku
  • Jeřábek, Karel
  • Krajnc, P.
  • Soukupová, Krasimira
  • Pulko, I.
  • Štefanec, D.
http://linked.open...ain/vavai/riv/wos
  • 256058000024
http://linked.open...n/vavai/riv/zamer
issn
  • 0024-9297
number of pages
is http://linked.open...avai/riv/vysledek of
Faceted Search & Find service v1.16.118 as of Jun 21 2024


Alternative Linked Data Documents: ODE     Content Formats:   [cxml] [csv]     RDF   [text] [turtle] [ld+json] [rdf+json] [rdf+xml]     ODATA   [atom+xml] [odata+json]     Microdata   [microdata+json] [html]    About   
This material is Open Knowledge   W3C Semantic Web Technology [RDF Data] Valid XHTML + RDFa
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, 91 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software