1. Development of novel cellulose acetate-g-poly(sodium 4-styrenesulfonate) proton conducting polyelectrolyte polymer.
- Author
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Shalaby, Asmaa Attya, Abd Elmageed, Mohamed Hussien, Malash, Gihan Farouk, Tamer, Tamer Mahmoud, Omer, Ahmed Mohamed, Mohy-Eldin, Mohamed Samir, and Khalifa, Randa Eslah
- Abstract
The development of cheap and efficient proton conducting polymers attracts scientists' attention, resulting in its potential role in fuel cell applications. This work synthesized a novel cellulose acetate-g-poly(sodium 4-styrene sulfonate) via free radical polymerization using potassium persulfate (KPS) as an initiator. The effects of varying KPS concentration, cellulose acetate (CA), sodium 4-styrene sulfonate (Na-SSA) content, reaction time, and temperature on the grafting parameters were studied. Grafting parameters, including the grafting yield (GY %), Add-on (%) and grafting efficiency (GE %) of the grafting reaction, were evaluated. Additionally, FTIR, TGA, DSC,
1 HNMR and EDX analyses were studied. The developed graft copolymers membranes illustrated increased water uptake values and ion exchange capacity (IEC) with the add-on (%). Furthermore, the proton conductivity of the developed graft copolymers was found superior (4.77 × 10−3 S.cm−1 ) to the pristine CA membrane (0.035 × 10−3 S.cm−1 ). [ABSTRACT FROM AUTHOR]- Published
- 2021
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