NONAQUEOUS POTENTIOMETRIC TITRATION OF COPOLYMERS CONTAINING ITACONICACID OR ITS MONOESTERS

The method of nonaqueous potentiometric titration enables to determine the content of itaconic acid or its monoesters in copolymers which ar e insoluble in water. This simple and suitable method requires a small amount of the sample. The determination of inflection point on the ti tration curve is performed numerically. The method was used for the co mposition determination of the following copolymers: styrene with itac onic acid, methyl methacrylate with itaconic acid, and methyl methacry late with 4-methyl itaconate.