Composites of Functional Poly(phenylacetylene)s and Single-Walled Carbon   Nanotubes: Preparation, Dispersion, and Near Infrared Photoresponsive   Properties

doi:10.1021/ma401647a

CORC > 北京大学 > 化学与分子工程学院

	Composites of Functional Poly(phenylacetylene)s and Single-Walled Carbon Nanotubes: Preparation, Dispersion, and Near Infrared Photoresponsive Properties
	Liu, Xiao-Qing ; Li, Yi-Lun ; Lin, Yuan-Wei ; Yang, Shuang ; Guo, Xue-Feng ; Li, Yan ; Yang, Juan ; Chent, Er-Qiang
刊名	macromolecules
	2013
关键词	DONOR-ACCEPTOR INTERACTION CONJUGATED POLYMERS SELECTIVE DISPERSION OPTICAL-PROPERTIES MOLECULAR-WEIGHT ENERGY-TRANSFER POLYACETYLENES HYBRIDS FILMS CHAINS
DOI	10.1021/ma401647a
英文摘要	To explore poly(phenylacetylene) (PPA) derivatives as the dispersing agent of single-walled carbon nanotubes (SWNTs), we synthesized a new series of side chain PPAs (denoted as PPA-m, m = 2, 1, 0). The side chains of PPA-m bear a soluble 3,4,S-tris(octyloxy)phenyl moiety at the end, and a biphenyl (m = 2), a phenyl (m = 1), or no phenyl ring (m = 0) in the middle linked to the PPA main-chain through an ether linkage. All the three PPA-ms can efficiently disperse SWNTs in organic solvents forming stable SWNTs/PPA-m composites. The composites were characterized by microscopy method, absorbance and photoluminescence spectroscopy. Quantitative analysis shows that there is a tendency for PPA-m to preferentially disperse SWNTs with large diameters in tetrahydrofuran and toluene when compared with the normally used surfactant of sodium dodecyl sulfate. The effective interactions between PPA-m and SWNTs should be ascribed to the helical wrapping of the PPA-m backbone on SWNTs and the pi-pi interactions between the phenyl groups and SWNTs. The long alkyl tails on the side-chains also prevent individual SWNTs from reaggregation. Additionally, the near-infrared (nIR) photoresponsive electrical conductivity of the SWNTs/PPA-2 composite is measured, indicating a 12% increase of the photocurrent upon the nIR irradiation, which is greater compared with that of the reported pure SWNTs film.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000327044300011&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Polymer Science; SCI(E); EI; 12; ARTICLE; 21; 8479-8487; 46
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/150710]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Liu, Xiao-Qing,Li, Yi-Lun,Lin, Yuan-Wei,et al. Composites of Functional Poly(phenylacetylene)s and Single-Walled Carbon Nanotubes: Preparation, Dispersion, and Near Infrared Photoresponsive Properties[J]. macromolecules,2013.
APA	Liu, Xiao-Qing.,Li, Yi-Lun.,Lin, Yuan-Wei.,Yang, Shuang.,Guo, Xue-Feng.,...&Chent, Er-Qiang.(2013).Composites of Functional Poly(phenylacetylene)s and Single-Walled Carbon Nanotubes: Preparation, Dispersion, and Near Infrared Photoresponsive Properties.macromolecules.
MLA	Liu, Xiao-Qing,et al."Composites of Functional Poly(phenylacetylene)s and Single-Walled Carbon Nanotubes: Preparation, Dispersion, and Near Infrared Photoresponsive Properties".macromolecules (2013).