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US 8,658,751 B2Granted
Molecule-based magnetic polymers and methods
AssigneeThe University of Akron
InventorsChang Dae Han, Wenyi Huang
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Abstract
Molecule-based magnetic polymers with reasonably high Curie temperature and methods of preparing are provided. In particular, magnetic polymers having repeating units of an organometallic monomer covalently bonded to a monomer having a plurality of unpaired electrons are disclosed. Intrinsically homogeneous magnetic fluids (liquid magnets) and methods of preparing are also provided.
Claims17
A magnetic polymer of the formula:
- wherein M is iron (Fe), cobalt (Co) or nickel (Ni), m is from 4 to 12 and n is from 6 to 14 and x represents the number of repeating units.
A method of preparing a magnetic polymer, the method comprising the steps of:
- (a) preparing an organometallic monomer;
- (b) preparing a monomer having a functional group that polymerizes with the organometallic monomer;
- (c) reacting the organometallic monomer of (a) with the monomer of (b), to yield an electron-donating polymer;
- and
- (d) reacting the electron-donating polymer of step (c) with an electron acceptor, thereby directly bonding the electron acceptor to the organometallic unit of the reaction product of step (c), thereby producing an electron donor-acceptor magnetic polymer.
2 more elements
Dependencies are inferred from the claim text.