Chloride-N-cyclohexylmaleimide Copolymer According to Chemical C omposition by Liquid Adsorption Chromatography zation, was investigated by adsorption chromatography with a silica gel column. The elution was carried out with a binary mixture of chlorobenzene and tetrahydrofran. When chlorobenzene was used as the mobile phase , only poly (vinyl chlo ride) was eluted from the column and the copolymers adsorbed on the surfa ce of the silica gel. With the increase of a tetrahydrofran content in the mobile phase , the copolymers eluted from the column according to the N-cyclohexylmaleimide content. By this method, the composition distribution of the copolym er was determined.
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