摘要
It is difficult to find a solvent of grafting copolymer of acrylic acid onto polystyrene, thus it is not easy to analyse its structure by ordinary methods. Until now, many scientists considered that grafting reaction occurs on the main chain of polystyrene. In this work, the radiation grafting mechanism is studied with solid NMR and infrared. We have found that the grafting position is on the meso position of phenyl ring of polystyrene when the solvent is methanol and the matrix is polystyrene and a preirradiation method is used. It
