材料科学
佩多:嘘
乙二醇
聚合物
导电聚合物
乙烯醇
环氧乙烷
电导率
水溶液
聚乙烯醇
可伸缩电子设备
延伸率
化学工程
高分子化学
涂层
复合材料
共聚物
有机化学
极限抗拉强度
数码产品
化学
物理化学
工程类
作者
Pengcheng Li,Kuan Sun,Jianyong Ouyang
标识
DOI:10.1021/acsami.5b04492
摘要
Stretchable and conductive materials can have important application in many areas, such as wearable electronics and healthcare devices. Conducting polymers have very limited elasticity because of their rigid conjugated backbone. In this work, highly stretchable and conductive polymer films are prepared by coating or casting aqueous solution of poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS) and a soft polymer, including poly(ethylene glycol), poly(ethylene oxide), or poly(vinyl alcohol). The soft polymers can greatly improve the stretchability and the conductivity of PEDOT:PSS. The elongation at break can be increased from 2% up to 55%. The soft polymers can also enhance the conductivity of PEDOT:PSS from 0.2 up to 75 S cm–1. The conductivity is further enhanced by adding dimethyl sulfoxide (DMSO) or ethylene glycol (EG) into the aqueous solutions of the polymer blends. Polymer blends with an elongation at break of close to 50% and a conductivity of 172 S cm–1 are attained.
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