METHOD OF FORMING A THIN ELECTROCONDUCTIVE FILM

摘要

A thin electroconductive film is formed by irradiating a shaped article of chlorinated vinyl polymer (1) with a pulsed light (7) having a pulse duration of not greater than 100 nsec., a fluence of above about 15mJ/cm<2>/pulse and below that at which the polymer is subject to ablation, a wavelength of from about 190 to about 300 nm, and repetition rate of above about 1 Hz and below that at which the polymer is subject to deformation and/or decomposition by a thermal effect, under vacuum or in an oxygen-free atmosphere (5) thereby irradiating the article with total photon numbers of at least 1 x 10<18>/cm<2> without substantially causing photo-crosslinking, oxidation or cleavage of the backbone chain. The invention does not use materials other than the starting polymer such as solvents or strong bases that can contaminate the thin film during a dehydrochlorination, so there is no need to remove solvents after reaction and no residual salts will be formed in the dehydrochlorination.