Abstract
Information is given on the effect of plasma surface modification and sterilization processes on the optical characteristics of a track membrane (TM) made of polyethylene terephthalate (PET). TMs were obtained by irradiating PET with a 40Ar + 8 ion beam and etching in a 1.5 M NaOH solution. Modification of TMs were carried out by low-temperature plasma, sterilization by autoclaving and gamma radiation. TMs from PET are characterized by a relatively low transmittance and refractive power, which is associated with the appearance of heterogeneities in the structure of PET, as well as the crystalline structure of the polymer. Exposure to plasma and sterilization reduced the transmittance of TM associated with an increase in crystallinity and the formation of membrane artifacts.
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