Process for preparing acid dyeable acrylonitrile copolymer in solution polymerization

摘要

In this paper an acid dyeable copolymer of acrylonitrile have been obtained by solution polymerization of acrylonitrile, alkaline monomer F. Taking AIBN as initiator the copolymer was carried out in sodium sulfocyanate aqueous solution . The effect of initiator concentration on the polymer molecular weight and conversion of the polymerization were studied. The relation between concentration of monomer F and the polymer conversion as well as concentration of monomer F and the ratio of dye-uptake of the copolymer were also investigated .The influence of pH value was also talked about. At last, the structure of the copolymer was characterized by the IR and NMR. It can be shown that the copolymer has excellent acid dyeable characteristic.