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Glass Transition Temperature Study and Structural Characterization of Swift Heavy Ion Irradiated Polymers

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PMMA and PVC thermoplastic polymers were irradiated with 50 MeV Li+3 ions to the fluences of 1010 to 1012 ions/cm2. XRD and DMA techniques were utilized to study the induced changes in structure and glass transition temperature of pristine polymer films. The XRD results show increase in the degree of crystallinity upon ion irradiation at low fluences (≤ 1011 ions/cm2) and decrease in crystallinity at high fluences (>1011 ions/cm2). Upon swift heavy ion radiation, the glass transition temperature of the polymers increases upto 1011 ions/cm2 fluence due to induced crosslinking and beyond this fluence, a decreasing behaviour is observed due to chain scissioning in polymeric structure.
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Keywords: Glass Transition Temperature; Lithium Ion Beam Irradiation; PMMA; PVC Thermoplastic Polymers; Structural Characterization

Document Type: Research Article

Affiliations: 1: Department of Physics, SKITM & G, Jaipur, India 2: SPSL, Department of Physics, University of Rajasthan, Jaipur, India

Publication date: November 1, 2016

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  • ADVANCED SCIENCE LETTERS is an international peer-reviewed journal with a very wide-ranging coverage, consolidates research activities in all areas of (1) Physical Sciences, (2) Biological Sciences, (3) Mathematical Sciences, (4) Engineering, (5) Computer and Information Sciences, and (6) Geosciences to publish original short communications, full research papers and timely brief (mini) reviews with authors photo and biography encompassing the basic and applied research and current developments in educational aspects of these scientific areas.
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