Quantitative determination of the low-molecular fraction content of spinning solutions of poly-meta-phenyleneisophthalamide

Conclusions A method for the quantitative determination of low-molecular fraction content in spinning solutions of poly-meta-phenyleneisophthalamide in dimethylacetamide has been established and developed using UV-spectroscopy; this is a basic procedure.The effect of the composition of the reaction mixture on the LMF content of the spinning solution has been shown.VNIISV, Tver'. Translated from Khimicheskie Volokna, No. 2, pp. 17–19, March–April, 1992.