Abstract
Measurements of the current-voltage characteristics of ion emission during the rupture of film samples of polyethylene terephthalate, polyimide, and polyphenylene ether in high vacuum have been carried out. Positive ions begin to be detected at a pulling potential of 100–200 V, and their number monotonically increases to saturation with increasing potential. Emission of negative ions is observed at a potential of << 200 V and in the range of 0–50 V has a resonance character, and the position of the resonance peaks is determined by the nature of the polymer. The discovered resonant nature of negative ion emission corresponds to the proposed physical mechanism of ion formation
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