Comparative Study of Butyl Rubber (IIR) and Bromobuty1 Rubber (BIIR) Based On FTIR, Dielectric and Thermal Studies

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Abstract:
The study aims for a comparative study of butyl rubber (IIR) and bromobutyl rubber (BIIR) based on spectroscopic, dielectric and thermal characterization. Using FTIR, complete vibrational analysis of butyl rubber and bromobutyl rubber are made available which confirms their chemical structure and the functional groups present in them. The effect of microwave frequency, namely 10 GHz and 26 GHz on dielectric constant values of IIR and BIIR was studied by using the method proposed by Robert and Von-Hippel. The thermal behavior of the rubber materials was studied from Thermogravimetric (TG) and Differential Thermal (DT) thermograms. The thermal stability of IIR and BIIR was compared from TG curves and the thermal transitions such as glass transition temperature (Tg), crystallization temperature (Tc) and crystalline melting temperature (Tm) were detected from DTA curves.
Keywords:IIR,BIIR, FTIR, dielectric constant ,Thermal stability

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