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聚乙烯醇/聚乙烯吡咯烷酮碱性复合膜的制备及其性能傅婧1,2, 林瑞2, 吕洪2, 王晓蕾2, 马建新1,2, 乔锦丽3 Preparation and Properties of Poly(vinyl alcohol)/Poly(vinyl pyrrolidone) Composites for Solid Alkaline Electrolyte MembranesFU Jing1,2, LIN Rui2, LV Hong2, WANG Xiao-Lei2, MA Jian-Xin1,2, QIAO Jin-Li3 PDF2804赞3摘要/Abstract摘要：通过在不同浓度KOH 溶液中进行掺杂, 制备出了聚乙烯醇/聚乙烯吡咯烷酮(PVA/PVP) 碱性聚合物电解质膜. 详尽考察了膜的组成、微观结构、热稳定性、离子电导率和甲醇吸收率. 结果表明, PVA 与PVP 两者具有较好的相容性, 当m(PVA) :m(PVP)=1 : 时, 膜断面致密、均匀, 未发生大尺度相分离. PVP 的混入可以极大提高复合膜的电导率和热稳定性. 当m(PVA) :m(PVP)=1 :1 时, 复合膜的电导率可达 ×10-3 S·cm-1. PVA/PVP/KOH 膜的甲醇吸收率随温度的升高没有明显变化, 100 ℃时其甲醇吸收率仅为同条件下Nafion 115 膜的1/4. 这表明该复合膜有望作为一种新型的碱性直接甲醇燃料电池用固体电解质膜且可提高膜的使用温度.关键词: 碱性固体电解质膜, 聚乙烯醇, 聚乙烯吡咯烷酮, 离子电导率, 甲醇吸收率, 热稳定性Abstract:Solid alkaline electrolyte membranes were prepared using poly(vinyl alcohol)/poly(vinyl pyrrolidone) (PVA/PVP) by KOH doping. The composition, microstructure, thermal stability, ionic conducitvity and methanol uptake of the composite membranes were investigated in detail. The wholly transparent, homogeneous and compact PVA/PVP/KOH composite membranes were obtained when m(PVA) :m(PVP)=1 : in a mass ratio and no obvious phase seperation was observed. The ionic conductivity and thermal stability of the PVA/PVP membranes increased greatly with increasing the content of PVP. A high ionic conductivity of ×10-3 S·cm-1 was obtained whena mass ratio of m(PVA) :m(PVP)=1 :1 was used. In additon, the methanol uptake of the PVA/PVP/KOH membranes showed almost no change after conditioning at elevated temperatures and it was 4 times lower than that of the Nafion 115 membrane after conditioning at 100 ℃. These membranes are, therefore, promising solid alkaline electrolyte membranes for use in alkaline direct methanol fuel cells at elevated operating words: Solid alkaline electrolyte membrane, Poly(vinyl alcohol), Poly(vinyl pyrrolidone), Ionicconductivity, Methanol uptake, Thermal stabilityMSC2000: O646We recommendPoly(ε-caprolactone)-Polypeptide Copolymer Micelles Enhance the Antibacterial Activities of AntibioticsLingshan Chen et al., Acta Physico-Chimica Sinica, 2019Photocrosslinking-Immobilized Polymer Vesicles for Lowering Temperature Triggered Drug ReleaseYuyao Liao et al., Acta Physico-Chimica Sinica, 2020Synthesis of Pyrazine-based Hole Transport Layer and Its Application in p-i-n Planar Perovskite Solar CellsGuiying Xu et al., Acta Physico-Chimica Sinica, 2020Poly(propylene carbonate)-based Polymer Electrolyte with an Organic Cathode for Stable All-Solid-State Sodium BatteriesHuifang Fei et al., Acta Physico-Chimica Sinica, 2019Poly(propylene carbonate)-based Polymer Electrolyte with an Organic Cathode for Stable All-Solid-State Sodium BatteriesHuifang Fei et al., Acta Physico-Chimica Sinica, 2019DICHROIC POLARIZING FILMS BASED ON POLY(VINYL ALCOHOL)-TUNGSTOPHOSPHORIC ACID NANOCOMPOSITESWorld Scientific BookMONO AND BIMODAL POROSITY BY PYROLYSIS OF BLOCK COPOLYMER-PHENOLIC RESIN COMPLEXESWorld Scientific BookPurification and Properties of Oxidized Poly(vinyl a1cohol)-Degrading EnzymeKiyofumi Sakai et al., Bioscience, Biotechnology, and Biochemistry, 1981Effects of the Structure of Poly(vinyl alcohol) on the Dehydrogenation Reaction by Poly(vinyl alcohol) Dehydrogenase from Pseudomonas sp. 113P3Tadashi Hatanaka et al., Bioscience, Biotechnology, and Biochemistry, 1995Real-world study of overall survival with palbociclib plus aromatase inhibitor in HR+/HER2− metastatic breast cancerBrought to you by Pfizer Medical AffairsPowered by参考文献相关文章 15Metrics推荐阅读 0版权所有 © 物理化学学报(Acta Phys. -Chim. Sin.)编辑部地址：北京大学化学与分子工程学院 邮政编码：100871服务热线: 传真: Email: