RADIATION GRAFTING OF STYRENE ONTO PTFE FILM

Yohan Yohan (Metallurgical and Material Department, Faculty of Engineering, University of Indonesia Kampus Baru UI Depok 16424)
Rifaid M. Nur (Metallurgical and Material Department, Faculty of Engineering, University of Indonesia Kampus Baru UI Depok 16424)
Lilik Hendrajaya (Metallurgical and Material Department, Faculty of Engineering, University of Indonesia Kampus Baru UI Depok 16424)
E. S. Siradj (Metallurgical and Material Department, Faculty of Engineering, University of Indonesia Kampus Baru UI Depok 16424)

Indonesian Journal of Chemistry
Vol 6, No 1 (2006)

Radiation grafting of styrene monomer onto poly(tetrafluoroethylene) (PTFE) film has been investigated. This research is emphasized on the conditioning of PTFE film. It was irradiated by γ-ray radiation at various irradiation dose from 2.5 - 12.5 kGy with dose rate 1.9 kGy/hour. Irradiated copolymer was then grafted by styrene monomer under various conditions. The results showed that degree of grafting increased by increasing irradiation dose, solvent concentration, temperature and time of grafting. The optimum condition of radiation grafting relatively was obtained at irradiation dose of 10 kGy, 2-propanol solvent, styrene concentration of 40 volume%, temperature and time of grafting of 70 oC and 6 hours each.