Issue 26, 2010
From the journal:

Journal of Materials Chemistry

Fluorescent and electrochromic polyamides with pyrenylaminechromophore†

Yi-Chun Kunga  and  Sheng-Huei Hsiao*b  

* Corresponding authors

a Department of Chemical Engineering, Tatung University, 40 Chungshan North Road, 3rd Section, Taipei, Taiwan

b Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, 1 Chunghsiao East Road, 3rd Section, Taipei, Taiwan
E-mail: shhsiao@ntut.edu.tw

Abstract

A series of novel polyamides with a pyrenylamine chromophore in the backbone were prepared from a newly synthesized diamine monomer, N,N-di(4-aminophenyl)-1-aminopyrene, and various dicarboxylic acids via the phosphorylation polyamidation technique. These polyamides were readily soluble in many organic solvents and could be solution-cast into tough and amorphous films. They had useful levels of thermal stability with glass-transition temperatures in the range of 246–326 °C and 10% weight loss temperatures in excess of 500 °C. The dilute NMP solutions of these polyamides exhibited fluorescence maxima around 522–544 nm with quantum yields up to 30.2%. These polyamides also showed remarkable fluorescence solvatochromism in various solvents. The polymer films showed reversible electrochemical oxidation and reduction accompanied by strong color changes from the yellow neutral state to a purple oxidized state and to an orange reduced state. The anodically electrochromic films had high coloration efficiency (up to 172 cm2 C−1 at 834 nm) and good redox stability, which still retained a high electroactivity after long-term redox cycles.

Graphical abstract: Fluorescent and electrochromic polyamides with pyrenylamine chromophore

About
Cited by
Related
Download options Please wait...

Supplementary files

Article information

DOI
https://doi.org/10.1039/C0JM00495B
Article type
Paper
Submitted
24 Feb 2010
Accepted
07 Apr 2010
First published
26 May 2010

J. Mater. Chem., 2010,20, 5481-5492

Permissions

Request permissions

Fluorescent and electrochromic polyamides with pyrenylamine chromophore

Y. Kung and S. Hsiao, J. Mater. Chem., 2010, 20, 5481 DOI: 10.1039/C0JM00495B

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements