Please use this identifier to cite or link to this item:
|Title:||Use of polythiophene and poly(thiophene-3-acetic acid) as charge-selective films for amperometric flow-cell detectors|
|Authors:||Chan, H.S.O. |
|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|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 17, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.