Structure and properties of stimuli-responsive PNIPAM/Fe3O4 microcapsules

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F10%3A00023286" target="_blank" >RIV/60461373:22340/10:00023286 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Structure and properties of stimuli-responsive PNIPAM/Fe3O4 microcapsules

Popis výsledku v původním jazyce

In the present work, we have prepared composite PNIPAM/Fe3O4 microbeads and characterized their properties by several methods. Although these microspheres were prepared by inverse Pickering emulsion polymerization method, they do not have the same structure as other microcapsules prepared via this procedure. Normally Pickering microcapsules are spherical and their surface is coated by a nanoparticle layer, however microbeads prepared in this work had foam-like structure and the Fe3O4 nanoparticles weredispersed in the whole volume. Composite microbeads exhibited reversible shrinking/swelling behavior in the dependence of temperature changes similar to those known from pure PNIPAM microgels. Due to the presence of iron oxide nanoparticles it was possible to manipulate with microbeads by using extrenal magnetic field. The combination of thermoresponsive PNIPAM property and Fe3O4 superparamagnetic behavior can give the composite microbeads excellent properties useful in a variety of appl

Název v anglickém jazyce

Structure and properties of stimuli-responsive PNIPAM/Fe3O4 microcapsules

Popis výsledku anglicky

In the present work, we have prepared composite PNIPAM/Fe3O4 microbeads and characterized their properties by several methods. Although these microspheres were prepared by inverse Pickering emulsion polymerization method, they do not have the same structure as other microcapsules prepared via this procedure. Normally Pickering microcapsules are spherical and their surface is coated by a nanoparticle layer, however microbeads prepared in this work had foam-like structure and the Fe3O4 nanoparticles weredispersed in the whole volume. Composite microbeads exhibited reversible shrinking/swelling behavior in the dependence of temperature changes similar to those known from pure PNIPAM microgels. Due to the presence of iron oxide nanoparticles it was possible to manipulate with microbeads by using extrenal magnetic field. The combination of thermoresponsive PNIPAM property and Fe3O4 superparamagnetic behavior can give the composite microbeads excellent properties useful in a variety of appl

Druh

D - Stať ve sborníku

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

<a href="/cs/project/GD104%2F08%2FH055" target="_blank" >GD104/08/H055: Transportní a reakční procesy v komplexních vícefázových systémech</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>R - Projekt Ramcoveho programu EK

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 37th International Conference of Slovak Society of Chemical Engineering, 2010

ISBN

978-80-227-3290-1

ISSN

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e-ISSN

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Počet stran výsledku

9

Strana od-do

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Název nakladatele

Slovak Society of Chemical Engineering

Místo vydání

Bratislava

Místo konání akce

Tatranske Matliare, Slovensko

Datum konání akce

1. 1. 2010

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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