The synthesis and characterization method of a styrene-vinyl tetrazole copolymer (StVTz) at different molar ratios (50:50, 60:40, 70:30, 80:20, and 90:10) is reported. The new copolymers were prepared from a previously synthesized styrene-co-acrylonitrile copolymer, followed by a Huisgen 1,3-dipolar cycloaddition reaction to obtain the styrene-tetrazole copolymers. Copolymers were characterized by Fourier transform infrared spectroscopy (FT-IR), ¹H nuclear magnetic resonance spectroscopy (¹H NMR) analysis, and molecular weight. Membranes were further prepared by casting method and the morphology revealed by atomic force microscopy (AFM). The thermal properties were evaluated by differential scanning calorimetry (DSC) and by thermogravimetric analysis (TGA), and ionic properties by means of ion-exchange capacity (IEC) value obtained from titration measurements and by water uptake (WU). Water content (WC) present was also determined by TGA. The electrochemical behavior was followed by Electrochemical impedance spectroscopy (EIS). Morphological analysis by atomic force microscopy demonstrates the presence of a single phase with roughness proportional to hydration. No relationship between WU, IEC, and WC with the composition of the copolymer was observed; however, a correlation between ionic conductivity and the percentage of bound water in the membrane was found. The results of ionic conductivity for copolymers envisage a potential application of this class of compounds as membranes in fuel cells.

报道了不同摩尔比 (50:50、60:40、70:30、80:20 和 90:10) 的苯乙烯-乙烯基四唑共聚物 (StVTz) 的合成和表征方法。新共聚物由先前合成的苯乙烯-共-丙烯腈共聚物制备，然后通过 Huisgen 1,3-偶极环加成反应获得苯乙烯-四唑共聚物。共聚物通过傅里叶变换红外光谱 (FT-IR)、¹ H 核磁共振光谱 ( ¹H NMR）分析和分子量。通过浇铸方法进一步制备膜，并通过原子力显微镜 (AFM) 揭示形态。热性能通过差示扫描量热法 (DSC) 和热重分析 (TGA) 进行评估，离子性能通过滴定测量和吸水率 (WU) 获得的离子交换容量 (IEC) 值进行评估。存在的水含量 (WC) 也由 TGA 确定。电化学行为由电化学阻抗谱（EIS）跟踪。通过原子力显微镜进行的形态学分析表明存在粗糙度与水合作用成正比的单相。未观察到 WU、IEC 和 WC 与共聚物组成之间的关系；然而，发现离子电导率与膜中结合水的百分比之间存在相关性。共聚物离子电导率的结果设想了这类化合物在燃料电池中作为膜的潜在应用。