Poly(vinylacetylene) obtained by the selective polymerization of monov
inylacetylene through the vinyl group has been investigated for its us
e as an alternative precursor for carbon fibers. The low yield of char
obtained on pyrolysis of the polymer in an inert atmosphere was impro
ved dramatically by subjecting its fibers to an oxidative treatment be
fore the carbonization step. Optimization of this oxidative treatment
was carried out to maximize the yield of carbon obtained after pyrolys
is up to 900 degrees C.