Investigations on Actuation Critical Response Voltage for IPMC Based on Modified EVOH lonomer

2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI:10.1109/NEMS.2007.352073

Yujun Zhang, Fengfu Li, Lei Li, Li-jun Dai

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Abstract

A novel ionic polymer-metal composite (IPMC), based on EVOH-SPEG ionomer synthesized by sulfonilication of poly (ethylene-co-vinyl alcohol) (EVOH) grafted 2-(2-chloroethoxy) ethanol (C₄H₉O₂Cl) or 2-[2-(2-chloroethxy) ethoxyl ethanol (C₆H₁₃O₃Cl) with 1, 3-propane sultone, has been prepared through electroless deposition of platinum on the bare polymer film. Based upon linear irreversible thermodynamics and cantilever beam model, the theoretical formula of IPMC actuation critical response voltage (U_C) was set up. And the U_C of IPMC based on different side chain length EVOH-SPEG were calculated with the intercept method and the theoretical formula, with the help of the IPMC tip force (F_T) experiment. The calculated U_C value was accordance with the influence of polymer structure and ionic conductivity on IPMC actuation critical response voltage, and there is a deviation between the U_Cobtained with intercept method and calculated by theoretical formula. As the theoretical principle, the U_C theoretical formula could be used for analyzing the influence of polymer intrinsic characteristic on the actuation of IPMC material.

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基于改进EVOH单体的IPMC驱动临界响应电压研究

以聚乙烯-乙烯醇(EVOH)接枝2-(2-氯乙氧基)乙醇(C4H9O2Cl)或2-[2-(2-氯乙氧基)乙氧基乙醇(C6H13O3Cl)与1,3 -丙烷磺酮磺化合成的EVOH- speg离子聚合物为基础，在裸膜上化学沉积铂，制备了新型离子聚合物-金属复合材料(IPMC)。基于线性不可逆热力学和悬臂梁模型，建立了IPMC驱动临界响应电压(UC)的理论公式。利用截距法和理论公式，结合IPMC尖端力(FT)实验，计算了不同侧链长度EVOH-SPEG下IPMC的UC。计算得到的UC值与聚合物结构和离子电导率对IPMC驱动临界响应电压的影响一致，但截距法得到的UC值与理论公式计算的UC值存在一定偏差。作为理论原理，UC理论公式可用于分析聚合物本征特性对IPMC材料致动的影响。

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2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems

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