It stays magnetic up to 170 degrees Fahrenheit. Unfortunately, it breaks down or even ignites when exposed to moisture or air. So Miller is trying to develop a more stable polymer magnet that could be used in consumer products. His research is financed by the National Science Foundation and Department of Energy. Polymer magnets are only the latest step in the development of plastics and other polymers, Miller said.
Plastics are organic polymers that have been molded or shaped into different forms.
Neoprene and other synthetics supplanted rubber in tires. Polystyrene foam was used in disposable coffee cups. Other plastics provided a safe alternative to asbestos insulation. Polyvinyl chloride replaced many metal pipes. Polyethylene challenged aluminum foil as a food wrap.