| Preparation and Properties of Polyhedral Oligomeric Silsesquioxane (POSS)/ Blend Sulfonated Poly (Phenyl Sulfone) Membrane for PEM Fuel Cell Application |
| کد مقاله : 1074-THFC |
| نویسندگان |
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شهرام مهدی پور عطایی *1، مریم محمدی1، مجید کریمی2 1گروه پلی یورتان و پلیمرهای پیشرفته، پژوهشکده علوم، پژوهشگاه پلیمر و پتروشیمی ایران، تهران، ایران 2گروه مهندسی پلیمریزاسیون، پژوهشکده مهندسی، پژوهشگاه پلیمر و پتروشیمی ایران، تهران، ایران |
| چکیده مقاله |
| The performance of polymer fuel cells as one of the most popular cells is generally dependent on polymer membrane characteristics. To commercialize the technology, the development of a high performance and low cost membrane as an alternative to Nafion commercial membrane is the focus of researchers. In this paper, the preparation and evaluation of the mechanical properties as well as proton conductivity of nanocomposite membrane from poly (phenyl sulfone) blend and POSS nanoparticle has presented. To this end, two sulfonated poly (phenyl sulfone) with 40 and 50% sulfonation degree were synthesized by polycondensation. For this purpose, sulfonated monomer was first synthesized. After confirming the structure of synthesized polymers, the blending of two polymers was done through mixing a 50/50 weight ratio of components (as the critical composition). Then, glycidyl-functionalized POSS nanoparticle was introduced into the blend to improve the compatibility of the two components, the film-ability, and the stability. Considering the importance of mechanical stability as well as proton conductivity, which are the main features in the application of proton exchange membranes in cell media, these two properties were investigated in this stage. According to the attained results, the effect of glycidyl-functionalized POSS nanoparticle on film-ability was significant. The mechanical properties of the membrane including tensile strength and elongation at break showed acceptable values of 40.5 MPa and 18.5%, respectively. Also, the prepared membrane showed proton conductivity of 58 mS/cm at 80 °C in deionized water. Thus, the membrane was considered for further evaluations especially in cell media. Moreover, the preparation and testing of improved membranes of this type was regarded. |
| کلیدواژه ها |
| Proton exchange Membrane, Blend Membrane, Sulfonated poly (phenyl sulfone), POSS, Tensile properties, Proton conductivity. |
| وضعیت: چکیده برای ارائه به صورت پوستر پذیرفته شده است |