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Abstract
Grafting of linear low density polyethylene (LLDPE) is an important method used in the modification of functional group. The method of γ-ray irradiation grafting of trifluoroacetic acid allyl ester onto LLDPE was studied. The γ-ray irradiation causes molecular bond scission and produces free radical sites on the LLDPE. This process was carried out at 500 kGy γ-ray irradiation doses from a 60Co source and the optimum concentration (30 wt%) of trifluoroacetic acid allyl ester. The microstructure of modified polymer film has been characterized by fourier transform infrared (FT-IR) and nuclear magnetic resonance (NMR). Thermal properties of the grafted products were also studied by thermogravimetric analysis (TGA).
Acknowledgments
This research was supported by the Korean Ministry of Science and Technology (MOST) as Nuclear R&D Program and S. Lee would like to the financial support by Brain Korea 21 in 2006.