Abstract

Membranes based on polyvinyl alcohol crosslinked with furfural, both unmodified and modified with aminosulfonic acid with and without tetraethoxysilane (TEOS), and membranes not crosslinked with furfural but modified with aminosulfonic acid are obtained and studied. The composition, surface morphology, degree of swelling in water, and specific electrical conductivity are studied. It is found that an electrolytic membrane based on polyvinyl alcohol crosslinked with furfural modified with tetraethoxysilane and aminosulfonic acid has the highest specific electrical conductivity (2.35 × 10^–2 S/cm at a temperature of 95°С) and a wider range of temperature stability (20–160°С) in comparison with other obtained membranes based on polyvinyl alcohol and the reference membrane Nafion-115. It is determined that the degree of swelling of the developed membranes is rather high in comparison with the reference membrane Nafion-115.

中文翻译：

---

基于交联聚乙烯醇的离子导电膜的开发与研究

摘要

获得并研究了基于与糠醛交联的聚乙烯醇膜，包括未改性和用氨基磺酸改性，含或不含四乙氧基硅烷 (TEOS)，以及未用糠醛交联但用氨基磺酸改性的膜。研究了成分、表面形态、在水中的溶胀度和比电导率。研究发现，以四乙氧基硅烷和氨基磺酸改性的糠醛交联聚乙烯醇为基础的电解膜具有最高的比电导率（2.35 × 10 ^–2与其他基于聚乙烯醇的膜和参考膜 Nafion-115 相比，S/cm 在 95°С) 和更宽的温度稳定性范围 (20–160°С)。已确定，与参考膜 Nafion-115 相比，所开发膜的溶胀程度相当高。