Polycrystalline polyaniline with strong infrared absorption

被引:9
作者
Dai, Tingyang [1 ]
Lu, Yun [1 ]
机构
[1] Nanjing Univ, Sch Chem & Chem Engn, State Key Lab Coordinat Chem, Dept Polymer Sci & Engn, Nanjing 210093, Peoples R China
基金
中国国家自然科学基金;
关键词
Conducting polymer; Nanostructure; Polycrystalline polyaniline; Infrared absorption;
D O I
10.1016/j.eurpolymj.2008.08.009
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Orthorhombic polycrystals of polyaniline with regular low-dimensional nanostructures are successfully fabricated by using a simultaneous redoping-reprecipitation approach. The protonation reaction happening at the same time with the reprecipitation is confirmed to be the key point for the formation of the special polycrystalline nanostructures. Experimental results indicate that the obtained polycrystals are composed of microcrystalline domains with ordered structures and amorphous matrix with disordered molecular arrangements, and as a result, exhibit an unusual strong infrared absorption over the entire infrared region. In addition, with the help of the special characteristics of the simultaneous redoping-reprecipitation process, D-camphorsulfonic acid-doped polyaniline polycrystals are prepared and show an exceptional optical property without chirality of the main chains. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:3417 / 3422
页数:6
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