Corona electrets based on composites of shockproof polystyrene and starch were studied.Utilization of spent polymer electrets is a topical problem because of their wide use in various converters,air filters and individual respirators,tribo-technical and sealing systems,etc.1-3.In Russia,polymer items are usually disposed of with solid domestic wastes.However,since polymers are extremely resistant to degradation,studies should be carried out to develop new biodegradable polymers.One of the ways to impart biodegradability to polymers is addition of fillers,which can act as a source of food for bacteria and fungi and simultaneously promote degradation of polymer chains to oligomer-ic fragments easily assimilated by the same microorganisms4,5.
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