Infrared spectral analysis has been applied for the study of cotton–polyacrylonitrile copolymers prepared by using the preirradiation method. The degree of grafting was determined from the absorption at 2249 cm.−1, which is characteristic of the polyacrylonitrile spectrum, with an accuracy of ± 1.5%.

for the Application of Radioactive Isotopes in the Textile Industry, R m o . Czechoslovakia SynopsisInfrared spectral analysis has been applied for the study of cotton-polystyrene copolymers prepared by ming the preirradiation method. The degree of grafting was determined from the absorption at 700 cm-1, which is characteristic of the polystyrene spectrum, with an accuracy of + 1.5%.