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首页> 外文期刊>Smart Materials & Structures >Polyethylene oxide-polytetrahydrofurane-PEDOT conducting interpenetrating polymer networks for high speed actuators
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Polyethylene oxide-polytetrahydrofurane-PEDOT conducting interpenetrating polymer networks for high speed actuators

机译：用于高速执行器的聚环氧乙烷-聚四氢呋喃-PEDOT导电互穿聚合物网络

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摘要

In recent years, numerous studies on electro-active polymer (EAP) actuators have been reported. One promising technology is the elaboration of electronic conducting polymer-based actuators with interpenetrating polymer network (IPNs) architecture. In this study, the synthesis and characterisation of conducting IPNs for actuator applications is described. The IPNs are synthesised from polyethylene oxide (PEO) and polytetrahydrofurane (PTHF) networks in which the conducting polymer (poly(3,4-ethylenedioxythiophene)) is incorporated. In a first step, PEO/PTHF IPNs were prepared via an 'in situ' process using poly(ethylene glycol) methacrylate and dimethacrylate and hydroxytelechelic PTHF as starting materials. The IPN mechanical properties were examined by DMA and tensile strength tests. N-ethylmethylimidazolium bis(trifluoromethanesulfonyl) imide (EMITFSI) swollen PEO/PTHF IPNs show ionic conductivities up to 10 ~(-3)Scm~(-1) at 30 °C. In a second step, the conducting IPN actuators were prepared by oxidative polymerisation of 3,4- ethylenedioxithiophene (EDOT) using FeCl_3 as an oxidising agent within the PEO/PTHF IPN host matrix. The frequency response performance of the bending conducting IPN actuator was then evaluated. The resulting actuator exhibits a mechanical resonance frequency of up to 125Hz with 0.75% strain for an applied potential of 5V.
机译：近年来，已经报道了许多关于电活性聚合物（EAP）致动器的研究。一种有前途的技术是精心设计的具有互穿聚合物网络（IPN）架构的基于导电聚合物的电子执行器。在这项研究中，描述了用于执行器应用的导电IPN的合成和表征。 IPN由聚环氧乙烷（PEO）和聚四氢呋喃（PTHF）网络合成，其中掺入了导电聚合物（聚（3,4-乙撑二氧噻吩））。第一步，使用聚（乙二醇）甲基丙烯酸甲酯和二甲基丙烯酸酯以及羟基telechelic PTHF作为起始原料，通过“原位”方法制备PEO / PTHF IPN。通过DMA和拉伸强度测试检查了IPN的机械性能。 N-乙基甲基咪唑双（三氟甲磺酰基）酰亚胺（EMITFSI）溶胀的PEO / PTHF IPN在30°C下的离子电导率最高为10〜（-3）Scm〜（-1）。在第二步中，通过使用FeCl_3作为PEO / PTHF IPN主体基质中的氧化剂进行3,4-乙撑二氧噻吩（EDOT）的氧化聚合，制备导电IPN促动器。然后评估弯曲导电IPN执行器的频率响应性能。对于5V的施加电势，所得的执行器在0.75％的应变下具有高达125Hz的机械共振频率。

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