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由聚乙烯-乙烯醇(EVOH)和1,3-丙烷磺酸内酯合成了EVOH磺酸钾离子聚合物(EVOH-SO_3K),并用2,4-甲苯二异氰酸酯(TDI)对其进行了交联改性,得到TDI改性EVOH磺酸钾离子聚合物(EVOH-TSO_3K),通过EVOH-TSO_3K溶液的铸膜和化学沉积制得离子聚合物膜金属复合材料(IPMC)。采用傅立叶变换红外光谱(FT-IR)、扫描电子显微镜(SEM)分别对EVOH-TSO_3K及其IPMC进行了结构表征。结果表明,EVOH-TSO_3K形成了交联结构,银金属电极均匀沉积在聚合物膜表面。通过三次化学沉积,IPMC表面电阻可达到8×10~(-1)Ω/mm~2,从而在外加负载电压下(3V)实现了电形变,电形变角度达到36°。
EVOH sulfonic acid potassium ion polymer (EVOH-SO 3 K) was synthesized from polyethylene-vinyl alcohol (EVOH) and 1,3-propane sultone and was subjected to 2,4-tolylene diisocyanate (TDI) The TDI modified EVOH sulfonic acid potassium ion polymer (EVOH-TSO_3K) was obtained by TDI modification. Ionic polymer membrane metal composites (IPMC) were prepared by casting and chemical deposition of EVOH-TSO_3K solution. The structure of EVOH-TSO_3K and its IPMC were characterized by Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). The results show that EVOH-TSO_3K forms a cross-linked structure, and the silver metal electrode is uniformly deposited on the surface of the polymer film. After three chemical depositions, the surface resistivity of IPMC can reach 8 × 10 -1 Ω / mm 2, so that the electrical deformation is achieved under the applied load voltage (3V) and the electrical deformation angle reaches 36 °.