Issue 26, 2016
From the journal:

RSC Advances

Formation of square prism-shaped poly(o-phenylenediamine) fibers triggered by high ionic strength†

Kunpeng Jiang,a   Shenghua Ma,a   Ying Zhanga  and  Xiaojun Han*a  

* Corresponding authors

a State Key Laboratory of Urban Water Resource and Environment, School of Chemical Engineering and Technology, Harbin Institute of Technology, 92 West Da-Zhi Street, Harbin 150001, P. R. China
E-mail: hanxiaojun@hit.edu.cn

Abstract

A simple bottom-up method to fabricate novel square prism-shaped poly(o-phenylenediamine) (PoPD) hierarchical fibers is presented. PoPD oligomers obtained by H2O2 oxidizing o-phenylenediamine (oPD) monomers were triggered to aggregate into fibers by high salt solution. The fibers were fully characterized by SEM, FTIR, XRD, UV-vis spectra, and thermogravimetric techniques. Their stability when treated with high temperature in water, acidic solution and ethanol solution was investigated, which showed three different disassembly patterns due to disruption of non-covalent interactions inside the fibers. It was very interesting that PoPD fibers exhibited a strong fluorescence property (emission at 527 nm) after alkali treatment.

Graphical abstract: Formation of square prism-shaped poly(o-phenylenediamine) fibers triggered by high ionic strength

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Article information

DOI
https://doi.org/10.1039/C6RA00204H
Article type
Paper
Submitted
05 Jan 2016
Accepted
14 Feb 2016
First published
16 Feb 2016

RSC Adv., 2016,6, 21895-21899

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Formation of square prism-shaped poly(o-phenylenediamine) fibers triggered by high ionic strength

K. Jiang, S. Ma, Y. Zhang and X. Han, RSC Adv., 2016, 6, 21895 DOI: 10.1039/C6RA00204H

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