Multi-block and random quaternary ammonium poly (arylene ether sulfone) copolymer ionomers were synthesized using sequential reactions. Ionomer film processing involved two separate methods: heterogeneous-conversion and solution-casting a pseudo-solution. Film hydroxyl conductivity, water swelling, and tensile strength were dependent upon the hydrophilic and hydrophobic block-length. ¹H nuclear magnetic resonance was used to evaluate brominated multi-block poly (arylene ether sulfone) composition, degree of functionalization (DF), and ion-exchange capacity (IEC). In general, multi-block ionomer hydroxyl conductivity was greater than its randomly functionalized counterpart at a similar IEC. Multi-block ionomer films with largest hydrophilic block length exhibited a hydroxide conductivity of 49.8 mS/cm. However, the equivalent random copolymer's conductivity was 1.02 times lower with a water uptake of 223 wt%, which were 190% higher than its multi-block counterpart. This was attributed to ion-clustering improvements, which is not present in a random ionomer. Equivalent copolymer ionomers had a percolation threshold associated with excessive swelling when its IEC exceeded 2.02 meq/g. In contrast to the random ionomer, the maximum swelling observed for the multi-block copolymers was 33.6% at an IEC of 2.86 meq/g. This swelling suppression at high IEC was attributed to the sequential hydrophilic-hydrophobic block architecture. Moreover, the solution-cast multi-block ionomer was found to possess the highest toughness of 1185 × 10⁴ J/m³, which was 237% greater than its heterogeneous counterpart. These results suggest that block length and ionomer processing play a critical role in controlling swelling, improving mechanical strength, and enhancing ion transport.

使用顺序反应合成了多嵌段和无规季铵基聚（亚芳基醚砜）共聚物离聚物。离聚物膜的加工涉及两种独立的方法：异质转化和溶液浇铸伪溶液。膜的羟基电导率，水溶胀和拉伸强度取决于亲水和疏水嵌段的长度。^1个H核磁共振用于评估溴化多嵌段聚（亚芳基醚砜）的组成，功能化程度（DF）和离子交换容量（IEC）。通常，在类似的IEC下，多嵌段离聚物的羟基电导率大于其随机官能化的对应物。具有最大亲水嵌段长度的多嵌段离聚物膜表现出49.8mS / cm的氢氧化物电导率。但是，当量无规共聚物的电导率低1.02倍，吸水率为223 wt％，比多嵌段共聚物的电导率高190％。这归因于离子簇的改进，这在无规离聚物中不存在。当其IEC超过2.02 meq / g时，等效共聚物离聚物的渗透阈值与过度溶胀有关。与无规离聚物相比，在2.86 meq / g的IEC下，多嵌段共聚物的最大溶胀率为33.6％。高IEC时的这种溶胀抑制作用是由于顺序的亲水-疏水嵌段结构所致。此外，发现溶液浇铸的多嵌段离聚物具有最高的韧性1185×10⁴  J / m ³，比其异质对应物大237％。这些结果表明，嵌段长度和离聚物加工在控制溶胀，提高机械强度和增强离子迁移方面起着至关重要的作用。