Electrical Responses and Stable Behavior of Polyaniline-polyurethane Concave Lens Array Film in Electrolyte  

作　　者：MENG Xiaomin YANG Xiaohang WANG Hongjuan JIA Ruokun 

机构地区：[1]College of Chemical Engineering, Northeast Dianli University, Jilin 132012, P. R. China

出　　处：《Chemical Research in Chinese Universities》2015年第4期680-684,共5页高等学校化学研究（英文版）

基　　金：Supported by the National Natural Science Foundation of China（No.51003010） and the Science and Technology Develop- ment Program of Jilin Province, China（Nos.20140101090JC, 20140204040GX）.

摘　　要：We present a synthetic methodology of polyaniline-polyurethane（PANI-PU） copolymer using interfacial in situ polymerization. PANI-PU copolymer was obtained through in situ polymerization of aniline precursor and the concave lens array film was molded by water drops. The fabrication of unique structured film was obtained through a solvent evaporation self-formed system. The detailed nanostructures of the film were illustrated by scanning electron microscopy（SEM） images, which showed homogeneous structure in a close-packed hexagonal arrangement. The di- mension of well-structured hexagon ranged from 10.8 ~tm to 12.9 lxm. Sensitive electrical responses of the concave lens array film resulted in the changes of swelling/shrinkage ratio in electrolyte under various conditions. Dimen- sional control of the film was achieved via adjusting a series of parameters including time, voltage, concentration and type of electrolyte. The electrical responses resulted rearranged molecular chain caused by redox reaction via powered PANI. Most importantly, the film maintained its response characteristics after 16 cycles. The high stability of film could be directly attributed to PU doping, which could help the PANI enhancing the mechanical strength and chemical solubility in solution.We present a synthetic methodology of polyaniline-polyurethane（PANI-PU） copolymer using interfacial in situ polymerization. PANI-PU copolymer was obtained through in situ polymerization of aniline precursor and the concave lens array film was molded by water drops. The fabrication of unique structured film was obtained through a solvent evaporation self-formed system. The detailed nanostructures of the film were illustrated by scanning electron microscopy（SEM） images, which showed homogeneous structure in a close-packed hexagonal arrangement. The di- mension of well-structured hexagon ranged from 10.8 ~tm to 12.9 lxm. Sensitive electrical responses of the concave lens array film resulted in the changes of swelling/shrinkage ratio in electrolyte under various conditions. Dimen- sional control of the film was achieved via adjusting a series of parameters including time, voltage, concentration and type of electrolyte. The electrical responses resulted rearranged molecular chain caused by redox reaction via powered PANI. Most importantly, the film maintained its response characteristics after 16 cycles. The high stability of film could be directly attributed to PU doping, which could help the PANI enhancing the mechanical strength and chemical solubility in solution.

关 键 词：Polyaniline-polyurethane（PANI-PU） copolymer Concave lens array film Electrical response Highstability 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业] X53[环境科学与工程—环境工程]