CELLULOSE-POLYACRYLAMIDE COPOLYMERS GRAFTING IN HOMOGENEOUS CONDITIONS

摘要

This paper is using LiCl/DMAc solvent system to dissolve cellulose with the aim of take advantage of nature resourcese. And acrylamide which grafted with cellulose was applied as a modifier in homogeneous solution. The authors designed the orthogonal experiment to research the effects of the weight of LiCl, the ratio of cellulose and acrylamide in homogeneous polymerization system. FTIR and XRD of graft copolymer of cellulose with acrylamide were investigated. The results are as follows: ① XRD show that the area of crystal in cellulose are distroied in LiCl/DMAc solvent system, which provide a homogeneous synthesizing solvent system for new modifying cellulose functional material. ② It was illustrated in FTIR spectra that the cellulose can be dissolved in LiCl/DMAc solvent thoroughly and modified for grafted effectively. ③ When grafted and copolymerized in this homogeneous system, the rate of grafting are more than that in non-homogeneous system.