Pyrolytic conversion of poly(4-((trimethylstannyl)methyl)styrene) (1) film to SnO2 was studied. The pyrolysis at 500°C of the polymer film which was crosslinked by 248 nm light or electron beam irradiation afforded a SnO2 film. The crosslinking network formation is necessary for the conversion of 1 into SnO2 through the encapsulation of the low molecular weight intermediates to prevent their escape from the polymer film.
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Tamai et al. (1999) studied this question.