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Surface modification of polytetrafluoroethylene (PTFE) films by the irradiation using synchrotron radiation (SR) below the melting temperature was studied. The changes in chemical structures, surface compositions and thermal properties of the SR-irradiated PTFE were examined by solid-state 19 F NMR, X-ray photoelectron spectroscopy (XPS) and differential scanning calorimetry (DSC), respectively...
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