The graft copolymerization of maleic anhydride (MAH) onto aeryloniirile-butadiene-styrene terpolymer ( ABS) in
molten slate with twin screw extruder was studied. Infrared spectra confirmed that maleie anhydride was successfully grafted onto the ABS backbone. The separation results of grafted copolymers indicated that the grafting occurred ut the butadiene portion of ABS. The influences of the amount of MAH, initiator's concentration, reaction temperature and rotating speed of the screw on the grad...