Rapid self-assembly of oligo(o-phenylenediamine) into one-dimensional structures through a facile reprecipitation route

Heqing Jiang, Xuping Sun, Minghua Huang, Yuling Wang, Dan Li, Shaojun Dong*

*Corresponding author for this work

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

The self-assembly of oligo(o-phenylenediamine) (OPD) into 1-D nanostructures on a macroscopic length scale was found when they were transferred from N-methyl pyrrolidone to deionized water. Field emission scanning electron microscopy and confocal fluorescence microscopy were used to investigate the morphology of the precipitates. Results showed that large amounts of OPD 1-D supertructures could be obtained through the simple reprecipitation route, and the length of the fibers could be tuned from microscale to macroscale by adjusting the ratio of two solvents. X-ray diffraction patterns and UV - vís spectra revealed that π-π interactions between OPD molecules that facilitated the formation of 1-D structures became predominant when they were transferred from a good solvent to a bad one. Accordingly, a possible formation mechanism was proposed.

Original languageEnglish
Pages (from-to)3358-3361
Number of pages4
JournalLangmuir
Volume22
Issue number7
DOIs
Publication statusPublished - 28 Mar 2006
Externally publishedYes

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