An infrared study of graft copolymers (PS/PVDF and PMMA/PVDF) is carri
ed out for determining the composition of the copolymers. An equation
which relates the grafting yield with the absorbance ratio of the two
polymers is established. The values calculated by infrared investigati
ons are in good agreement with those obtained by weight measurements i
n a specific range of grafting yield.