SYNTHESIS,PROPERTIES AND APPLICATIONS OF POLYURETHANE/CARBOXYMETHYL CELLULOSE BLENDED POLYMERS.I.COMPATIBILITY OF THE PU/CMC BLENDED POLYMER

摘要

In the study,a polyurethane prepolymer(PU)was first synthesized,then mixed with CMC in various ratios,the resulting mixture appearing as a thin membrane;finally,the compatibility of the mixture was tested by FTIR,DSC,SEM and X-ray analyses.The results show that the PU/CMC blended polymer with higher PU ratios evidences hydrogen bonds,meaning that the two components are partially compatible.