PREPARATION AND GAS-SENSING PROPERTY OF POLYANILINE BASED ULTRATHIN FILMS BY LANGMUIR-BLODGETT TECHNOLOGY

XIE Dan; JIANG Yadong; LI Dan; WU Zhiming; LI Yanrong

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PREPARATION AND GAS-SENSING PROPERTY OF POLYANILINE BASED ULTRATHIN FILMS BY LANGMUIR-BLODGETT TECHNOLOGY

Research Article | 更新时间：2021-03-19

- PREPARATION AND GAS-SENSING PROPERTY OF POLYANILINE BASED ULTRATHIN FILMS BY LANGMUIR-BLODGETT TECHNOLOGY
- Acta Polymerica Sinica Issue 2, Pages: 224-227(2001)
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- Published：20 April 2001，
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XIE Dan, JIANG Yadong, LI Dan, WU Zhiming, LI Yanrong. PREPARATION AND GAS-SENSING PROPERTY OF POLYANILINE BASED ULTRATHIN FILMS BY LANGMUIR-BLODGETT TECHNOLOGY. [J]. Acta Polymerica Sinica (2):224-227(2001)
DOI：

XIE Dan, JIANG Yadong, LI Dan, WU Zhiming, LI Yanrong. PREPARATION AND GAS-SENSING PROPERTY OF POLYANILINE BASED ULTRATHIN FILMS BY LANGMUIR-BLODGETT TECHNOLOGY. [J]. Acta Polymerica Sinica (2):224-227(2001) DOI：

摘要

以聚苯胺 (PAN)为原料

利用LB(Langmuir Blodgett)超薄分子膜技术

制备了不同层数的纯聚苯胺LB膜及聚苯胺与乙酸 (AA)混合 (PAN-AA)LB膜

对其进行了紫外-可见光光谱分析研究

并对不同层数的聚苯胺基LB膜的二氧化氮 (NO2)气敏特性进行了研究

发现PANLB膜较PAN-AALB膜具有更好的敏感性、响应性和可逆性

3层和15层PANLB膜对相对百分比为20×10-6NO2 的响应时间分别为 10s和30s

15层PANLB膜的恢复时间约为4min.

Abstract

Pure polyaniline(emeraldine base form) Langmuir-Blodgett(LB) films and polyaniline and aceticacid mixed LB films with various layers are prepared．The LB films with various layers are characterized byultraviolet／visible(UV-Vis)spectroscopy．The gas-sensitivity to NO2 of polyaniline based LB films with different layers are studied．It is found that pure polyaniline LB films show higher sensitivity

responsivity and reversibility to NO2 gas than those of polyaniline and acetic acid mixed LB films．The response time of 3-layer and 15-layer pure polyaniline LB films to 20×16-6NO2 gas is about 10 seconds and 30 seconds．respectively．The recovery time of the latter is about 4min．

关键词

聚苯胺LB膜二氧化氮气敏特性

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