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Textile Journal of Uzbekistan

Abstract

This article presents the results of differential IR spectroscopy of modified acetate fibers with the crosslinking reagent GMOMM-3 and oligoesters lapramol-294 and laprol-805. When modifying acetate fibers with crosslinking reagents, the most important task is to prove the formation of covalent bonds between the polymer and the crosslinking reagent. It should be emphasized that the use of IK spectroscopy does not provide information on the interaction of SCA fibers with modifying additives. Therefore, the method of differential IK spectroscopy was used when one spectrum was absorbed from another. In the differential spectrum, a significant weakening of the intensity of the 3500 sm– 1 band is observed, which may indicate the interaction of the –OH groups of cellulose acetate and oligoesters of lapramol-294 and laprol-805. The spectra show distinct absorption in the region of 3600 sm-1, as well as a number of bands at 1500-1850 sm-1 and in the region at lower frequencies, which confirm the conclusion about the chemical interaction of the cross-linking reagent with the SCA during heat treatment.

First Page

70

Last Page

76

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