Temperature-sensitive hybrid microgels with magnetic properties

In the present paper, we report the preparation of hybrid temperature-sensitive microgels which include magnetite nanoparticles in their structure. Polymeric microgels have been prepared by surfactant-free emulsion copolymerization of acetoacetoxyethyl methacrylate (AAEM) and N-vinylcaprolactam (VCL...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 20(2004), 24 vom: 23. Nov., Seite 10706-11
1. Verfasser: Pich, Andrij (VerfasserIn)
Weitere Verfasser: Bhattacharya, Sanchita, Lu, Yan, Boyko, Volodymyr, Adler, Hans-Juergen P
Format: Aufsatz
Sprache:English
Veröffentlicht: 2004
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Gels Ferrosoferric Oxide XM0M87F357
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245 1 0 |a Temperature-sensitive hybrid microgels with magnetic properties 
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520 |a In the present paper, we report the preparation of hybrid temperature-sensitive microgels which include magnetite nanoparticles in their structure. Polymeric microgels have been prepared by surfactant-free emulsion copolymerization of acetoacetoxyethyl methacrylate (AAEM) and N-vinylcaprolactam (VCL) in water with a water-soluble azo-initiator. The obtained microgels possess a low critical solution temperature (LCST) in water solutions, with a rapid decrease of the particle size being observed at elevated temperatures. Magnetite was deposited directly into microgels, leading to the formation of composite particles which combine both temperature-sensitive and magnetic properties. The influence of magnetite load on microgel size, morphology, swelling-deswelling behavior, and stability is discussed 
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650 4 |a Research Support, Non-U.S. Gov't 
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700 1 |a Bhattacharya, Sanchita  |e verfasserin  |4 aut 
700 1 |a Lu, Yan  |e verfasserin  |4 aut 
700 1 |a Boyko, Volodymyr  |e verfasserin  |4 aut 
700 1 |a Adler, Hans-Juergen P  |e verfasserin  |4 aut 
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