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, ¹HNMR 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).

廉价且高效的质子传导聚合物的开发引起了科学家的关注，从而使其在燃料电池应用中发挥了潜在作用。这项工作 使用过硫酸钾 (KPS) 作为引发剂，通过自由基聚合合成了一种新型醋酸纤维素-g-聚（4-苯乙烯磺酸钠）。研究了不同 KPS 浓度、醋酸纤维素 (CA)、4-苯乙烯磺酸钠 (Na-SSA) 含量、反应时间和温度对接枝参数的影响。评估了接枝参数，包括接枝反应的接枝产率 (GY %)、附加 (%) 和接枝效率 (GE %)。此外，FTIR、TGA、DSC、¹研究了 HNMR 和 EDX 分析。开发的接枝共聚物膜显示出增加的吸水值和离子交换容量 (IEC) 与附加 (%)。此外，发现开发的接枝共聚物的质子传导率（4.77 × 10 ^-3 S.cm ^-1）优于原始 CA 膜（0.035 × 10 ^-3 S.cm ^-1）。