CHEMICALLY-INDUCED GRAFT-COPOLYMERIZATION OF METHYL-METHACRYLATE ONTOSISAL FIBERS

Graft copolymerization of methyl methacrylate onto sisal fibers using potassium persulfate initiator was studied. The effect of the initiato r concentration, monomer concentration, reaction time, reaction temper ature and pH, oil the grafting percentage, grafting efficiency and tot al conversion has been investigated. The surface topology, as well as the S-ray diffraction patterns of the modified. fibres were also studi ed. Moreover, the dyeing characteristics of the grafted fibers when dy ed with basic dyes together with tile color fastness of these dyes tow ards UV radiations and boiling water were investigated.