GRAFT COPOLYMERIZATION OF COTTON FABRICS USING GLYCIDYL METHACRYLATE AT LOW TEMPERATURE
M. F. SHAABAN *
Textile Research Division, National Research Center, Dokki, Cairo, Egypt.
M. ATTYA
Faculty of Science, Al Azhar University, Cairo, Egypt.
E. A. EL-ALFY
Textile Research Division, National Research Center, Dokki, Cairo, Egypt.
*Author to whom correspondence should be addressed.
Abstract
Obtaining graft copolymerization of Glycidyl Methacrylate (GMA) monomer on cotton fabrics at low temperature is the desired goal. We used ammonium persulphate/acetone sodium bisulphite (APS/ASBS) together as a redox initiating system for the copolymerization reaction. Graft yield (GY), graft efficiency (GE) and Total conversion (TC) had been used as grafting governing factors. Other factors were studied to get the optimum conditions for the grafting reaction such as pH value, liquor ratio (L: R), redox initiator concentration, reaction time, temperature and Monomer concentration [M]. The obtained results showed that the optimal grafting yield were obtained at the following conditions: initiator concentration of 20/40 m mole/l for APS/ASBS respectively, pH value 6, time 180 min., monomer concentration[M] 150% based on weight of fabric(O.W.F) at 25°C, grafted and scoured cotton fabric were characterized via thermal gravimetric analysis and Infra-red spectroscopy.
Keywords: Glycidyl methacrylate, graft copolymerization and redox initiator system