title: Polyaniline microtubes with a hexagonal cross-section and pH-sensitive fluorescence properties.
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.
authors: School of Chemistry and Environment, Beijing University of Aeronautics and Astronautics, Beijing 100191, P R China.
authors: Zhaoyuan
authors: Z
authors: Liu
authors: Ying
authors: Y
authors: Zhu
authors: Liang
authors: L
authors: Wang
authors: Chunmei
authors: C
authors: Ding
authors: Nü
authors: N
authors: Wang
authors: Meixiang
authors: M
authors: Wan
authors: Lei
authors: L
authors: Jiang
mesh_terms: D000814:Aniline Compounds / Q000737:chemistry*; D005453:Fluorescence; D006863:Hydrogen-Ion Concentration; D058085:Iron Compounds / Q000737:chemistry; D016877:Oxidants / Q000737:chemistry; D015125:Oxyquinoline / Q000031:analogs & derivatives* / Q000737:chemistry; D013451:Sulfonic Acids / Q000737:chemistry
chemical_list: D000814:Aniline Compounds; D058085:Iron Compounds; D016877:Oxidants; D013451:Sulfonic Acids; C416807:polyaniline; D015125:Oxyquinoline; C013053:8-hydroxyquinoline-5-sulfonic acid