Development and Research on Ion-Conducting Membranes Based on Cross-Linked Polyvinyl Alcohol

被引：2
|
作者：
Lyozova, O. S. [1 ]
Zagrebelny, O. A. [1 ]
Krasnopeeva, E. L. [1 ,2 ]
Baranchikov, A. S. [3 ]
Shilova, O. A. [1 ]
Ivanova, A. G. [1 ]
机构：
[1] Russian Acad Sci, Grebenshchikov Inst Silicate Chem, St Petersburg 199034, Russia
[2] Russian Acad Sci, Inst Macromol Cpds, St Petersburg 199004, Russia
[3] Russian Acad Sci, Kurnakov Inst Gen & Inorgan Chem, Moscow 119991, Russia
来源：
GLASS PHYSICS AND CHEMISTRY | 2021年 / 47卷 / 02期
关键词：
hybrid electrolytic membrane; cross-linked polyvinyl alcohol; furfural; sol-gel method; aminosulfonic acid; tetraethoxysilane; ionic conductivity; degree of swelling in water; POLY(VINYL; SURFACE; SILICA; ACID; PVA;
D O I：
10.1134/S1087659621020061
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
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 x 10(-2) S/cm at a temperature of 95 degrees C) and a wider range of temperature stability (20-160 degrees C) 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.
引用
收藏
页码：173 / 180
页数：8
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