Polymerization of Methylene Dichloride and Sodium Tetrasulfide: Synthesis and Kinetic Studies |
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| Authors: | M R Kalaee M H N Famili M Dadgar M R Talei Bavil Olyai A Naderi |
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| Institution: | 1. Postgraduate Engineering Centre, Department of Polymer Engineering , Islamic Azad University , South Tehran Branch, Tehran, Iran;2. Polymer Group , Tarbiat Modares University , Tehran, Iran;3. Faculty of Engineering, Department of Chemistry , Islamic Azad University , South Tehran Branch, Tehran, Iran |
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| Abstract: | The kinetics of the condensation polymerization of a novel polysulfide polymer based on methylene dichloride and sodium tetrasulfide is studied. The results of the experiments indicated that the reaction order is two. The activation energy obtained from the Arrhenius plot is 1.879 kcal mol?1, and the pre-exponential frequency factor is A = 27.11 min?1 at temperature range of 40～60°C. The polymer is characterized by using Fourier transform-infrared and CHN analysis. Thermal properties were evaluated by differential scanning calorimetry. The TGA-DTA was used to find out the thermal stability of polymer. The solvent resistance of the polymer was investigated by the swelling method. Supplemental materials are available for this article. Go to the publisher's online edition of Phosphorus, Sulfur, and Silicon and the Related Elements to view the free supplemental file. |
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| Keywords: | Characterization polysulfide polymer synthesis |
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