Radiation‐induced graft copolymerization of mixtures of styrene and acrylamide onto cellulose acetate. II. Studies on bromine labeling

Formation of the active sites on irradiated trunk polymer, for example, cellulose acetate, was determined by taking recourse to bromine labeling and the G values of active sites were accordingly evaluated. The G value was as well determined through analysis of peroxide. It has been concluded that the G value measured by bromine labeling corresponds to accessible radicals, while that evaluated through measurement of peroxide accounts for the total. The number‐average molecular weights of the graft chains were calculated and these were found to be dependent on monomer composition.