Graft Copolymerization of ilcrylic ilcid Esters onto Cotton Fabric

면직물에의 아크릴산 에스테르의 그라프트중합

Graft copolymerization of three acrylic acid ester, methyl acrylate(MA), ethyl acrylate (EA) and butyl acrylate(BA), onto cotton fabrics has been carried out in aqueous emulsion medium which contains ceria ammonium nitrate as an initiator. The factors that affect the graft yield and the graft efficiency such as the kinds of monomer(MA, EA, BA) , initiator concentration, grafting time, grafting temperature and monomer concentration were investigated. And some physical properties of acrylic acid esters grafted cotton fabric were tested. The results are as follows. There is an optimum range giving the maximum graft yield for the concentration of initiator and for the grafting temperature. The ranges were 0.01~0.02mol(conc. of initiator) and 30~45$^{\circ}C$ (grafting temperature). The graftlyields were increased with grafting time, and monomer concentration. Among the three monomers used in this experiment, MA was grafted more easily than the others. This result seemed to be due to the fact that MA has the smallest side chain. Roughly, the graft efficiency was inversely proportional to the graft yield. The thickness of acrylic acid ester grafted cotton fabric was increased, but moisture regain and tensile sirengh were decreased with the increase of graft yield.