Effect of oxidizing agent of polypyrrole layer prepared by vapor polymerization

Jae Hyun Cho, Jung Suk Kim, Joon Boo Yu, Sung Ok Sohn, Jeung Soo Huh

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The influence of oxidant on surface morphology and sensing property of polypyrrole (PPy) - poly (vinyl alcohol) (PVA) double layer sensors was investigated. PPy-PVA double layer sensors were prepared by vapor polymerization using FeCl3 as oxidizing agent and PVA as adhesive agent. The surface of PPy-PVA layer was observed on a scanning electron microscope (SEM). The surface morphology of sensor showed homogeneous layer and thickness of 1μm. And the sensing properties were investigated using a flow measuring system. The maximum sensitivity to methanol 1000ppm was proportional to increasing 12wt % FeCl3 concentration at 25°C The response time was not affected by FeCl3 concentration, but the recovery time increased according to the amount of FeCl3. The best amount of FeCl3 was observed at 12wt%.

Original languageEnglish
Title of host publicationEco-Materials Processing and Design VI - Proceedings of the 6th International Symposium on Eco-Materials Processing and Design, ISEPD-6
PublisherTrans Tech Publications Ltd.
Pages526-529
Number of pages4
ISBN (Print)0878499660, 9780878499663
DOIs
StatePublished - 2005
Event6th International Symposium on Eco-Materials Processing and Design, ISEPD-6 - Jinju, Korea, Republic of
Duration: 16 Jan 200518 Jan 2005

Publication series

NameMaterials Science Forum
Volume486-487
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference6th International Symposium on Eco-Materials Processing and Design, ISEPD-6
Country/TerritoryKorea, Republic of
CityJinju
Period16/01/0518/01/05

Keywords

  • Ferric chloride
  • Poly (vinyl alcohol)
  • Polypyrrole
  • Vapor polymerization

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