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2 publications

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    Thermally Stimulated Luminescence and Electron Spin Resonance Study of Gamma Irradiated Poly Carbonate

    By B. Sanjeeva Rao, M. Papi Reddy, A. Raju, S. Kalahasti, E. Venkateshwar Rao

    Abstract: Polycarbonate (PC) is an industrially important polymer. Gamma irradiation effects of PC are investigated by thermally stimulated luminescence (TSL) and electron spin resonance (ESR) techniques. The TSL spectra of irradiated PC have shown two glow peaks, around 149oC (422 K) and 165oC (438 K). The observed glow peaks are analysed by initial rise methods, Chen’s method and modified initial rise method. The trap parameters corresponding to the two glow peaks …

    Published in Emerging Trends in Chemical Engineering · Vol. 4, Issue 2, 2017 · pp. 23–39 Read article

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    Characterization and Gamma Irradiated MA-EMA Copolymer by ESR and FTIR Techniques

    By B. Sanjeeva Rao, N. Srinivasa Rao, B. Suresh Babu, M. Papi Reddy

    Abstract: AbstractGamma irradiation effect of methacrylamide-ethyl methacrylate (MA-EMA) copolymer has been investigated by electron spin resonance (ESR) and Fourier Transform infrared (FTIR) spectroscopic techniques. The ESR spectrum observed for gamma irradiated MA-EMA copolymer has shown resolved hyperfine (hf) pattern at lower temperatures (77K) while at higher temperatures the spectrum is appeared to be broadened. Fourier Transform Infrared spectra of pure and gamma irradiated MA-EMA copolymer have been recorded for the copolymer …

    Published in Journal of Polymer & Composites · Vol. 4, Issue 3, 2016 · pp. 40–44 Read article

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