Effect of irradiation on poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) nanofiber conductivity

被引：18

作者：

Schrote, Kaitlin ^{[1
]}

Frey, Margaret W. ^{[2
]}

机构：

[1] Cornell Univ, Dept Chem & Chem Biol, Ithaca, NY 14850 USA

[2] Cornell Univ, Dept Fiber Sci & Apparel Design, Ithaca, NY 14850 USA

来源：

POLYMER | 2013年 / 54卷 / 02期

基金：

美国国家科学基金会;

关键词：

Nanofiber; Electrospinning; Conductivity; POLYMERS; FIBERS; RAMAN; FABRICATION; OXIDATION; ORIGIN; STATE;

D O I：

10.1016/j.polymer.2012.11.062

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Conducting nanofibers of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)/polyvinyl alcohol (PEDOT:PSS/PVA) were fabricated at room temperature and via electrospinning with diameters ranging from 100 to 300 nm. The nanofibers were irradiated with Gamma and X-rays for varying lengths of time and the change in conductivity was evaluated. Raman and Electron Spin Resonance spectroscopy of X-ray irradiated nanofibers were obtained to determine the mechanism of conductivity degradation. A decrease in molecular ordering as well as chain scission via chain cross-linking and free radical formation are the two most likely mechanisms for change in conductivity. These nanofibers are promising candidates for use in highly sensitive, real-time electrically based sensor for radiation detection. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：737 / 742

页数：6

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