Active control of diffusion from composite iron oxide/silica microparticles with hollow cores

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Active control of diffusion from composite iron oxide/silica microparticles with hollow cores

Popis výsledku v původním jazyce

The aim of this work is to study the possibility of active control of substance's diffusion across the silica shell of prepared microspheres. The composite microspheres are in the size range of tens of micrometers and were prepared via the soft templating route. The microparticles have a porous silica (SiO2) shell and a hollow core which includes nanoparticles of iron oxides (Fe2O3 / Fe3O4). We tested two approaches for controlling the diffusion across the silica shell: i) so-called polymer brushes systems and ii) covering the surface of spheres by a phase change material (Fig. 1). We chose thermoresponsive polymer poly(N-isopropylacrylamide) (PNIPAM) as polymer brushes and palm oil as the phasechange material. Both of them were bound on the surface and inside the pores of prepared hollow microspheres and the release kinetics were studied.

Název v anglickém jazyce

Active control of diffusion from composite iron oxide/silica microparticles with hollow cores

Popis výsledku anglicky

The aim of this work is to study the possibility of active control of substance's diffusion across the silica shell of prepared microspheres. The composite microspheres are in the size range of tens of micrometers and were prepared via the soft templating route. The microparticles have a porous silica (SiO2) shell and a hollow core which includes nanoparticles of iron oxides (Fe2O3 / Fe3O4). We tested two approaches for controlling the diffusion across the silica shell: i) so-called polymer brushes systems and ii) covering the surface of spheres by a phase change material (Fig. 1). We chose thermoresponsive polymer poly(N-isopropylacrylamide) (PNIPAM) as polymer brushes and palm oil as the phasechange material. Both of them were bound on the surface and inside the pores of prepared hollow microspheres and the release kinetics were studied.

Druh

D - Stať ve sborníku

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

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Návaznosti

R - Projekt Ramcoveho programu EK

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název statě ve sborníku

20th International Congress of Chemical and Process Engineering

ISBN

978-80-905035-1-9

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

"0903-1"-"0903-8"

Název nakladatele

Orgit, s.r.o.

Místo vydání

Praha

Místo konání akce

Prague

Datum konání akce

25. 8. 2012

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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