Controllable synthesis of conducting polypyrrole nanostructures

doi:10.1021/jp054335k

CORC > 北京大学 > 化学与分子工程学院

	Controllable synthesis of conducting polypyrrole nanostructures
	Zhang, XT ; Zhang, J ; Song, WH ; Liu, ZF
刊名	journal of physical chemistry b
	2006
关键词	ELECTROCHEMICAL SYNTHESIS CATIONIC SURFACTANTS VIBRATIONAL-SPECTRA WORMLIKE MICELLES LATTICE-DYNAMICS POLYMER WIRES POLYANILINE NANOWIRES TEMPLATES GROWTH
DOI	10.1021/jp054335k
英文摘要	Wire-, ribbon-, and sphere-like nanostructures of polypyrrole have been synthesized by solution chemistry methods in the presence of various surfactants (anionic, cationic, or nonionic surfactant) with various oxidizing agents [ammonium persulfate (APS) or ferric chloride (FeCl3), respectively]. The surfactants and oxidizing agents used in this study have played a key role in tailoring the nanostructures of polypyrrole during the polymerization. It is inferred that the lamellar structures of a mesophase are formed by self-assembly between the cations of a long chain cationic surfactant [cetyltrimethylammonium bromide (CTAB) or dodeyltrimethylammonium bromide (DTAB)] and anions of oxidizing agent APS. These layered mesostructures are presumed to act as templates for the formation of wire- and ribbon-like polypyrrole nanostructures. In contrast, if a short chain cationic surfactant octyltrimethylammonium bromide (OTAB) or nonionic surfactant poly(ethylene glycol) mono-p-nonylphenyl ether (O pi-10) is used, sphere-like polypyrrole nanostructures are obtained, whichever of the oxidizing agents mentioned above is used. In this case, micelles resulting, from self-assembly among surfactant molecules are envisaged to serve as the templates while the polymerization happens. It is also noted that, if anionic surfactant sodium dodeyl surfate (SDS) is used, no characteristic nanostructures of polypyrrole were observed. This may be attributed to the doping effect of anionic surfactants into the resulting polypyrrole chains, and as a result, micelles self-assembled among surfactant molecules are broken down during the polymerization. The effects of monomer concentration, surfactant concentration, and surfactant chain length on the morphologies of the resulting polypyrrole have been investigated in detail. The molecular structures, composition, and electrical properties of the nanostructured polypyrrole have also been investigated in this study.; Chemistry, Physical; SCI(E); EI; PubMed; 0; ARTICLE; 3; 1158-1165; 110
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/150258]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Zhang, XT,Zhang, J,Song, WH,et al. Controllable synthesis of conducting polypyrrole nanostructures[J]. journal of physical chemistry b,2006.
APA	Zhang, XT,Zhang, J,Song, WH,&Liu, ZF.(2006).Controllable synthesis of conducting polypyrrole nanostructures.journal of physical chemistry b.
MLA	Zhang, XT,et al."Controllable synthesis of conducting polypyrrole nanostructures".journal of physical chemistry b (2006).