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Volume 6
Research & Reviews: Journal of Material Sciences
Advanced Materials 2018
September 19-21, 2018
September 19-21, 2018 Tokyo, Japan
22
nd
International Conference on
Advanced Materials and Nanotechnology
Yingying Cai, Res. Rev. J Mat. Sci. 2018, Volume 6
DOI: 10.4172/2321-6212-C4-024
Silica-coatedmagnetite nanoparticles carrying a high density polymer brush shell of hydrophilic polymer
Yingying Cai
Georg-August-Universität Göttingen, Germany
P
ossessing inherently favorable superparamagnetic properties, magnetite nanoparticles (MNPs<20 nm) have attracted much
research interest over recent years for extensive applications. Integrating the properties of MNPs and high-density polymer
brushes in one structure requires sophisticated synthetic designs and effective chemical approaches. We present a simple and
straightforward strategy for the fabrication of hydrophilic-polymer-capped magnetite-core‒silica-shell nanohybrids with well-
defined structure employing reverse microemulsion technique and surface-initiated Reversible Addition-Fragmentation chain
Transfer (RAFT) polymerization. The high density polymer brushes allow a precise patterning of the magnetic nanohybrids
with a tunable interparticle distances ranging from 20 nm to 80 nm by controlling the molecular weight of polymer. The high
structural precision provides a near stand-alone state of the MNPs in the nanohybrids with effectively inhibited magnetic
interaction as shown by SQUID measurements.
Biography
Yingying Cai is pursuing her PhD in Macromolecular Chemistry from the Georg-August-Universität Göttingen, Germany. Her research focuses on the development
of novel silica coated nanomaterials incorporating surface chemistry and polymerization for various applications.
caiyingying.custom@gmail.com