Fabrication and Characterization of Chemical Vapor-actuated PANI/PU Bilayer

Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (5): 1205.

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Fabrication and Characterization of Chemical Vapor-actuated PANI/PU Bilayer

DING Chun-Mei¹, WANG Liang¹, ZHU Ying^1*, WAN Mei-Xiang², JIANG Lei^1,2*

1. School of Chemistry and Environment, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
2. Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China

Received:2010-06-13 Revised:2010-09-06 Online:2011-05-10 Published:2011-04-11
Contact: ZHU Ying;JIANG Lei E-mail:zhuying@buaa.edu.cn;jianglei@iccas.ac.cn
Supported by:
国家“九七三”计划项目(批准号: 2007CB936403, 2010CB934701)、国家自然科学基金(批准号: 20974006)、北京市自然科学基金(批准号: 20974006)、新世纪优秀人才支持计划(批准号: NECT-08-0030)和中央高校基本科研业务费专项资金(批准号: YWF-10-01-B16)资助.

Abstract

Abstract: Polyaniline/polyurethane (PANI/PU) bilayer actuators are fabricated using PANI nanofibers as active material and electrospun polyurethane (PU) fibers as substrate. It is found that the PANI/PU bilayer actuators undergo bending-recovery movement induced by hydrochloride vapor. The deformation mechanism of the bilayer actuators might result from asymmetric volume expansion/contraction because of doping/dedoping and sorption/desorption of chemical vapors. Moreover, the PANI/PU bilayer actuator can carry over 9 times its own weight due to the high toughness of PU fibers, displaying the well load-bearing capacity. Because the PANI/PU actuator is ultra-lightweight, low cost and simple operation, it is advantageous for practical applications in the future.

Key words: Polyaniline, polyurethane, electrospinning, bilayer actuator；weight loading ability

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DING Chun-Mei, WANG Liang, ZHU Ying*, WAN Mei-Xiang, JIANG Lei*. Fabrication and Characterization of Chemical Vapor-actuated PANI/PU Bilayer[J]. Chem. J. Chinese Universities, 2011, 32(5): 1205.

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Fabrication and Characterization of Chemical Vapor-actuated PANI/PU Bilayer

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