界面诱导组装聚苯胺晶态薄膜及其气体响应性能

doi:10.19491/j.issn.1001-9278.2022.10.009

中国塑料 ›› 2022, Vol. 36 ›› Issue (10): 60-64.DOI: 10.19491/j.issn.1001-9278.2022.10.009

界面诱导组装聚苯胺晶态薄膜及其气体响应性能

董经纬(), 颜海燕(), 王毅, 张博, 陈书娟, 李旻浩, 张悦

西安工业大学材料与化工学院，西安 710021

收稿日期:2022-07-13 出版日期:2022-10-26 发布日期:2022-10-27
通讯作者: 颜海燕（1979—），女，副教授，主要研究方向为导电功能高分子及其复合材料，yanhaiyan@xatu.edu.cn
E-mail:3285017034@qq.com;yanhaiyan@xatu.edu.cn
作者简介:董经纬（1996—），男，硕士研究生，从事导电聚合物及其传感材料的研究，3285017034@qq.com
基金资助:
陕西省自然科学基础研究计划(2022JM?215);西安工业大学国家级大创项目(202110702013)

Assembly of polyaniline crystalline film by interface induction and its gas response properties

DONG Jingwei(), YAN Haiyan(), WANG Yi, ZHANG Bo, CHEN Shujuan, LI Minhao, ZHANG Yue

School of Materials and Chemical Engineering，Xi′an Technological University，Xi’an 710021，China

Received:2022-07-13 Online:2022-10-26 Published:2022-10-27
Contact: YAN Haiyan E-mail:3285017034@qq.com;yanhaiyan@xatu.edu.cn

摘要/Abstract

摘要：

通过界面模板法合成聚苯胺（PANI）晶态薄膜，并基于单晶硅底材制备了PANI薄膜气体传感器，利用傅里叶变换红外光谱仪（FTIR）、拉曼光谱仪（Raman）、Ｘ射线衍射仪（XRD）、透射电子显微镜（TEM）和智能气敏分析系统（CGS⁃1TP）对产物的结构与性能进行分析，研究界面模板诱导作用对PANI薄膜结构与气体响应性能的影响。结果表明，两亲性模板剂诱导PANI在气⁃液界面聚合并组装成薄膜，PANI薄膜结晶性受反应时间与膜厚影响，24~48 h反应时间制备的PANI薄膜晶态特征明显，薄膜对25 ppm的NH₃气体响应值在15~60之间，平均响应和恢复时间分别为36 s和51 s，表现出快速响应恢复特性和优异的稳定性。

关键词: 界面模板法, 聚苯胺, 晶态薄膜, 气体响应性能

Abstract:

In this paper， a polyaniline （PANI） crystalline film was prepared using an interface template method， and then a PANI⁃film⁃based gas sensor was prepared using monocrystalline silicon as a substrate. The structure and properties of the resulting product were analyzed using FTIR， Raman， XRD， TEM， and a CGS⁃1TP gas sensing detection and analysis system. The effect of interface template inducement on the structure and gas sensing properties of PANI film were studied. The results indicated that the amphiphilic template induced PANI to polymerize at the gas⁃liquid interface and assemble onto the film. The crystallinity of PANI film was related to the reaction time， and its crystalline characteristics were evident when prepared at a reaction time ranging from 24 to 48 h. The film exhibited a value of gas response to 25 ppm NH₃ between 15 and 60. The average response and recovery time were 36 s and 51 s respectively. The film showed rapid response recovery characteristics and excellent stability.

Key words: interface template method, polyaniline, crystalline film, gas response property

中图分类号:

TQ323

董经纬, 颜海燕, 王毅, 张博, 陈书娟, 李旻浩, 张悦. 界面诱导组装聚苯胺晶态薄膜及其气体响应性能[J]. 中国塑料, 2022, 36(10): 60-64.

DONG Jingwei, YAN Haiyan, WANG Yi, ZHANG Bo, CHEN Shujuan, LI Minhao, ZHANG Yue. Assembly of polyaniline crystalline film by interface induction and its gas response properties[J]. China Plastics, 2022, 36(10): 60-64.

图/表 5

图1 PANI薄膜制备过程与机理示意图

Fig.1 Schematic diagram of preparation process and mechanism of PANI film

图2 PANI薄膜的FTIR、Raman及UV⁃Vis谱图

Fig.2 FTIR，Raman and UV⁃Vis spectrums of PANI films

图3 PANI薄膜的XRD谱图和界面诱导组装原理图

Fig.3 XRD pattern and schematic diagram of interface induced assembly of PANI films

图4 不同反应时间得到的PANI薄膜微观形貌照片

Fig.4 Micrographs of PANI films obtained at different reaction time

图5 不同反应时间制备的PANI薄膜的厚度、电导率与气体响应

Fig.5 Thickness， conductivity and gas response of PANI films obtained at different reaction time

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界面诱导组装聚苯胺晶态薄膜及其气体响应性能

Assembly of polyaniline crystalline film by interface induction and its gas response properties

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