Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 39, Issue 13, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201800226
Keywords
magnetite; nanostructures; reversible addition-fragmentation chain transfer (RAFT); silica
Categories
Funding
- Deutsche Forschungsgemeinschaft (DFG) [VA226/10-1]
- Fonds der Chemischen Industrie
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Integrating the properties of magnetite nanoparticles (MNPs) and high-density polymer brushes in one structure requires sophisticated synthetic designs and effective chemical approaches. A simple and versatile strategy for the fabrication of hydrophilic-polymer-capped magnetite-core-silica-shell nanohybrids with well-defined structure employing reverse microemulsion technique and reversible addition-fragmentation chain transfer (RAFT) polymerization is presented. The high-density polymer brush allows precise patterning of the magnetic nanohybrids with a tunable interparticle distance ranging from 20 nm to 80 nm by controlling the polymer size. The high structural precision provides a near stand-alone state of the MNPs in the nanohybrids with effectively inhibited magnetic interaction, as shown by superconducting quantum interference device (SQUID) measurements.
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