Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/77340
Title: Use of polythiophene and poly(thiophene-3-acetic acid) as charge-selective films for amperometric flow-cell detectors
Authors: Chan, H.S.O. 
Toh, C.-S. 
Gan, L.-M. 
Issue Date: 1995
Source: Chan, H.S.O.,Toh, C.-S.,Gan, L.-M. (1995). Use of polythiophene and poly(thiophene-3-acetic acid) as charge-selective films for amperometric flow-cell detectors. Journal of Materials Chemistry 5 (4) : 631-637. ScholarBank@NUS Repository.
Abstract: A new method for preparing charge-selective polythiophene and poly(thiophene-3-acetic acid) films is described. The polymers were coated onto a micro-flow-cell electrode using constant current electrochemical polymerization. These polymer-modified electrodes exhibited charge-selective responses towards ascorbic acid, catechol and dopamine, when polymerized from solutions containing optimum amounts of water. Investigations by infrared and X-ray photoelectron spectroscopies showed that electron-rich hydroxy, carbonyl and carboxyl groups were responsible for polythiophene's charge-selective property. Whereas, poly(thiophene-3-acetic acid) is inherently charge-selective, and its charge-selective property was observed only when the porosity of the film was increased by the impeding effect of water on polymer growth during polymerization.
Source Title: Journal of Materials Chemistry
URI: http://scholarbank.nus.edu.sg/handle/10635/77340
ISSN: 09599428
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

16
checked on Feb 17, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.