Abstract
The grafting of polyesters by the ring-opening copolymerization of epoxides with phthalic anhydride (PhAn) was carried out at 120°C by using carbon black that contained COOK groups as the initiating site of copolymerization. The copolymerization was easily initiated by COOK groups and polyester was effectively grafted onto carbon black: the grafting ratio of polyester obtained from PhAn and glycidyl methacrylate was increased up to about 63% with the increase in conversion. The polyester-grafted carbon black gave a stable colloidal dispersion in chloroform.
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