期刊
LANGMUIR
卷 27, 期 17, 页码 10484-10491出版社
AMER CHEMICAL SOC
DOI: 10.1021/la201723a
关键词
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资金
- Spanish Science and Innovation Ministry [MAT2010-15349]
- UCM-BSCH program for Consolidation of Research Groups [GR35/10-A-911033]
- COST Action [D43]
- Comunidad de Madrid
In this work, we describe a new methodology for the preparation of monodisperse and thermosensitive microgels with magnetic core. In order to produce such a material, hydrophobic magnetic Fe3O4 nanoparticles were prepared by two methods: thermal decomposition and coprecipitation. The surface of these nanoparticles was modified by addition of 3-butenoic acid, and after that these nanoparticles were dispersed in water and submitted to free radical polymerization at 70 degrees C in the presence of N-isopropylacrylamide (NIPAM) and bisacrylamide. The result of this reaction was monodisperse microgels with a magnetic core. By varying the amount of 3-butenoic acid, it was possible to obtain hybrid microgels with different magnetic core sizes and different architectures.
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