Plastic magnet
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A plastic magnet is a non-metallic magnet made from an organic polymer.
Plastic magnets could be used in
biocompatible than its metallic counterparts.[citation needed
]
Examples
PANiCNQ
PANiCNQ is plastic magnet made of a combination of emeraldine-based
University of Durham by Pakistan born scientist Naveed A. Zaidi and colleagues, and it was the first magnetic polymer to function at room temperature.[1]
PANi is a magnetic properties arise from the fully pi-conjugated nitrogen-containing backbone combined with molecular charge transfer side groups. These properties cause the molecule to have a high density of localized spins that can give rise to coupling of their magnetic fields
. When this polymer magnet is synthesized, the polymer chains need 3 months to line up before displaying any notable magnetism.
Light-tunable magnet
In February 2002, researchers from
Green laser light reversed the effect somewhat by decreasing the material's magnetism to 60 percent of its normal level. The plastic magnet was made from a polymer made of tetracyanoethylene (TCNE) combined with manganese (Mn) ions – atoms of the metal manganese with electrons removed. The magnet functioned up to a temperature of 75 K
(−198 °C; −325 °F).
References
- . Retrieved 2 April 2012.
- ^ Pam Frost Gorder (1 February 2002). "Researchers Develop World's First Light-tunable 'Plastic' Magnet". Ohio State University. Retrieved 2 April 2012.
Works cited
- Matthew Killeya (30 August 2004). "First practical plastic magnets created". New Scientist. Retrieved 2 April 2012.
- Dušan A. Pejaković; Chitoshi Kitamura; Joel S. Miller; Arthur J. Epstein (2002). "Photoinduced Magnetization in the Organic-Based Magnet Mn(TCNE)x•y(CH2Cl2)". PMID 11863772.
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