Abstract
The present work looks into the property changes of polytetrafluoro ethylene as a reaction to 23 kGy dose of 2 MeV electron irradiation. A systematic investigation of modification in physico-chemical properties of the polymer by electron irradiation has been carried out by different characterisation techniques viz. fourier transform IR spectroscopy, electron spin resonance spectroscopy, thermogravimetric analysis, differential scanning calorimetry and X-ray diffraction analysis. The electron irradiation induced chain scission in the polymer, which resulted in the appearance of some new absorbance bands in the IR region, the formation of relatively stable free radical, decrease in melting point, reduction in thermal stability and decrease in crystallinity of the polymer.
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