Radiation-induced grafting of styrene into poly(vinylidene fluoride) film by simultaneous method with two different solvents |
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| Authors: | HP Ferreira DF Parra AB Lugao |
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| Institution: | 1. Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ), Forschungszentrum Jülich GmbH, Lichtenbergstr. 1, 85748 Garching, Germany;2. Institute of Energy and Climate Research, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany;3. Jülich Centre for Neutron Science (JCNS), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany;4. RWTH Aachen University, Faculty of Mechanical Engineering, Aachen, Germany;1. Max Planck Institute for Polymer Research, 55128 Mainz, Germany;2. Henkel AG & Co. KGaA, Adhesive Research, 40191 Duesseldorf, Germany;1. Physics Department, Faculty of Science, El-Minia University, Egypt;2. National Center for Radiation Research and Technology, Atomic Energy Authority, 3 Ahmad El-Zomor Street, P.O. Box 29, Nasr City, Cairo 11370, Egypt;1. Health Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India;2. Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India;1. Brockhouse Institute for Materials Research, McMaster University, Hamilton, ON, Canada L8S 4M1;2. Department of Physics, University of Alberta, Edmonton, AB, Canada T6G 2E1;1. Experimental Nuclear Physics Department (Cyclotron Facility), Nuclear Research Center, Atomic Energy Authority, P.O. 13759, Cairo, Egypt;2. Accelerators and Ion Sources Department, Nuclear Research Center, Atomic Energy Authority, P.O. 13759, Cairo, Egypt;3. Central Lab. for Elemental and Isotopic Analysis, Nuclear Research Center, Atomic Energy Authority, P.O. 13759, Cairo, Egypt;4. Experimental Nuclear Physics Department, Nuclear Research Center, Atomic Energy Authority, P.O. 13759, Cairo, Egypt;5. Physics Department, Faculty of Science, Zagazig University, P.O. 44519, Zagazig, Egypt |
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| Abstract: | Radiation-induced grafting of styrene into poly(vinylidene fluoride) (PVDF) films with 0.125 mm thickness at doses of 1 and 2.5 kGy in the presence of a styrene/N,N-dimethylformamide (DMF) solution (1:1, v/v) and at doses of 20, 40 and 80 kGy in presence of a styrene/toluene solution (1:1, v/v) at dose rate of 5 kGy h?1 was carried out by the simultaneous method under nitrogen atmosphere and room temperature, using gamma rays from a Co-60. The films were characterized before and after modification by calculated grafting yield (GY %), infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and thermogravimetry (TG/DTG). GY results shows that grafting increases with dose, and the grafting of styrene was confirm by FT-IR due to the new characteristic peaks and by the TG and DSC attributed to changes in thermal behavior of the grafted material. Results showed that the system allows the controlled grafting of styrene into PVDF using gamma rays at doses as low as 1 kGy in DMF. |
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