Structural changes in polyaniline upon reaction with DPPH

Chyong Fang Hsu; Hui Peng; Lijuan Zhang; Jadranka Travas-Sejdic; Paul A. Kilmartin

doi:10.1380/ejssnt.2009.269

Structural changes in polyaniline upon reaction with DPPH

Chyong Fang Hsu
, Hui Peng
, Lijuan Zhang
, Jadranka Travas-Sejdic
, Paul A. Kilmartin

The University of Auckland

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

Polyaniline (PANI) powder was prepared using ammonium persulfate (APS) as the oxidant with an APS to aniline (ANI) ratio of 1.5. The powder was then reduced by hydrazine or dedoped using an aqueous ammonium solution. The antioxidant properties of these polymers were investigated through their reaction with the stable and intensely coloured DPPH radical. The highest DPPH scavenging activity was shown by reduced PANI, followed by PANI as-prepared, with the least radical scavenging shown by dedoped PANI. The reaction of PANI and DPPH radicals causes structural changes in PANI, with a transformation of-NH-and N⁺ groups to-N=.

Original language	English
Pages (from-to)	269-272
Number of pages	4
Journal	e-Journal of Surface Science and Nanotechnology
Volume	7
DOIs	https://doi.org/10.1380/ejssnt.2009.269
State	Published - 4 Apr 2009
Externally published	Yes

Keywords

Conducting polymer
DPPH
Polyaniline
Radical scavenging

Access to Document

10.1380/ejssnt.2009.269

Cite this

@article{98179e4e3ccb42caba53738dd7e8806f,

title = "Structural changes in polyaniline upon reaction with DPPH",

abstract = "Polyaniline (PANI) powder was prepared using ammonium persulfate (APS) as the oxidant with an APS to aniline (ANI) ratio of 1.5. The powder was then reduced by hydrazine or dedoped using an aqueous ammonium solution. The antioxidant properties of these polymers were investigated through their reaction with the stable and intensely coloured DPPH radical. The highest DPPH scavenging activity was shown by reduced PANI, followed by PANI as-prepared, with the least radical scavenging shown by dedoped PANI. The reaction of PANI and DPPH radicals causes structural changes in PANI, with a transformation of-NH-and N+ groups to-N=.",

keywords = "Conducting polymer, DPPH, Polyaniline, Radical scavenging",

author = "Hsu, \{Chyong Fang\} and Hui Peng and Lijuan Zhang and Jadranka Travas-Sejdic and Kilmartin, \{Paul A.\}",

year = "2009",

month = apr,

day = "4",

doi = "10.1380/ejssnt.2009.269",

language = "英语",

volume = "7",

pages = "269--272",

journal = "e-Journal of Surface Science and Nanotechnology",

issn = "1348-0391",

publisher = "The Japan Society of Vacuum and Surface Science",

}

TY - JOUR

T1 - Structural changes in polyaniline upon reaction with DPPH

AU - Hsu, Chyong Fang

AU - Peng, Hui

AU - Zhang, Lijuan

AU - Travas-Sejdic, Jadranka

AU - Kilmartin, Paul A.

PY - 2009/4/4

Y1 - 2009/4/4

N2 - Polyaniline (PANI) powder was prepared using ammonium persulfate (APS) as the oxidant with an APS to aniline (ANI) ratio of 1.5. The powder was then reduced by hydrazine or dedoped using an aqueous ammonium solution. The antioxidant properties of these polymers were investigated through their reaction with the stable and intensely coloured DPPH radical. The highest DPPH scavenging activity was shown by reduced PANI, followed by PANI as-prepared, with the least radical scavenging shown by dedoped PANI. The reaction of PANI and DPPH radicals causes structural changes in PANI, with a transformation of-NH-and N+ groups to-N=.

AB - Polyaniline (PANI) powder was prepared using ammonium persulfate (APS) as the oxidant with an APS to aniline (ANI) ratio of 1.5. The powder was then reduced by hydrazine or dedoped using an aqueous ammonium solution. The antioxidant properties of these polymers were investigated through their reaction with the stable and intensely coloured DPPH radical. The highest DPPH scavenging activity was shown by reduced PANI, followed by PANI as-prepared, with the least radical scavenging shown by dedoped PANI. The reaction of PANI and DPPH radicals causes structural changes in PANI, with a transformation of-NH-and N+ groups to-N=.

KW - Conducting polymer

KW - DPPH

KW - Polyaniline

KW - Radical scavenging

UR - https://www.scopus.com/pages/publications/68249129469

U2 - 10.1380/ejssnt.2009.269

DO - 10.1380/ejssnt.2009.269

M3 - 文章

AN - SCOPUS:68249129469

SN - 1348-0391

VL - 7

SP - 269

EP - 272

JO - e-Journal of Surface Science and Nanotechnology

JF - e-Journal of Surface Science and Nanotechnology

ER -

Structural changes in polyaniline upon reaction with DPPH

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this