| Popis: |
Deoxy(thiocyanato)celluloses were prepared by treating chlorodeoxycellulose fabrics with potassium thiocyanate in N,N -dimethylformamide. Under optimal reaction-conditions, more than 80% of the chlorine atoms in the cellulose derivative were replaced by thiocyanate groups. Both the chlorodeoxy- and deoxy(thiocyanato)cellulose fabrics exhibited moderate antibacterial activities. Variables studied were thiocyanate concentration, reaction time and temperature, and degree of substitution of the chlorodeoxycellulose in the fabrics being treated. The effect that each of these variables had on the replacement of chlorine atoms by thiocyanate groups was investigated. The tensile, wrinkle-recovery, and biocidal properties of the chlorodeoxy- and deoxy(thiocyanato)cellulose fabrics were also compared. |
