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Polyaniline Microtubes with a Hexagonal Cross‐Section and pH‐Sensitive Fluorescence Properties
Author(s) -
Liu Zhaoyuan,
Zhu Ying,
Wang Liang,
Ding Chunmei,
Wang Nü,
Wan Meixiang,
Jiang Lei
Publication year - 2011
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201000638
Subject(s) - polyaniline , aniline , fluorescence , hexagonal crystal system , dopant , materials science , sulfonic acid , chemical engineering , cross section (physics) , nanotechnology , polymer chemistry , chemistry , crystallography , polymer , organic chemistry , polymerization , composite material , doping , optics , optoelectronics , physics , quantum mechanics , engineering
Abstract Polyaniline (PANI) microtubes with a hexagonal cross‐section are successfully synthesized by a self‐assembly process in the presence of 8‐hydroxyquinoline‐5‐sulfonic acid (HQS) as a dopant and FeCl 3 as an oxidant. The wall thickness of the PANI/HQS microtubes can be adjusted by the content of the oxidant. It is proposed that the aniline/HQS salts serve as a hard template for the formation of the hexagonal‐cross‐section microtubes. Moreover, PANI/HQS microtubes combined with ZnSO 4 show pH‐dependent fluorescence. PANI hexagonal‐cross‐section microtubes combined with a pH‐sensitive fluorescence may promise potential applications in fields such as chemical sensors and confined reaction vessels.