Electrochemical sensing application of poly(acrylic acid modified EDOT-co-EDOT):PSS and its inorganic nanocomposite with high soaking stability, adhesion ability and flexibility. Issue 16 (22nd January 2015)

• Record Type: Journal Article
• Authors: Wang, Zifei; Wang, Zhipeng; Zhang, Hui; Duan, Xuemin; Xu, Jingkun; Wen, Yangping
• Is Part Of: RSC advances. Volume 5:Issue 16(2015)
• Page Start: 12237
• Page End: 12247
• Publication Date: 2015-01-22
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c4ra10970h
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : A novel and simple strategy to prevent swelling, disintegration, cracking and peeling-off of poly(3, 4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) film in water was developed. Abstract : A novel and simple strategy to prevent swelling, disintegration, cracking and peeling-off of poly(3, 4-ethylenedioxythiophene):poly(styrene-sulfonate) (PEDOT:PSS) film in water was developed. This strategy was based on the film of a conducting polymer, poly(acrylic acid modified EDOT- co -EDOT):PSS (poly(EDOT- co -EDOT-AA):PSS). The film had high soaking stability, good adhesive ability, and high flexibility, which are crucial to maintaining long-term electrode stability in water of the PEDOT:PSS film. The most widely studied novel carbon nanomaterial, graphene, and a unique and versatile clay nanomaterial, halloysite, were introduced into poly(EDOT- co -EDOT-AA):PSS aqueous dispersion to prepare organic polymer–inorganic nanocomposites. Use of poly(EDOT- co -EDOT-AA):PSS film and its composite films as electrode coatings enabled long-term high performance of the film electrodes and provided high electrode stability and high adhesive ability. The structure, optical, flexibility, conductivity properties and morphology of poly(EDOT- co -EDOT-AA):PSS and its composites were systematically investigated. The performance of poly(EDOT- co -EDOT-AA):PSS film and its composite films, and their electrodes in sensing applications was also evaluated. The as-prepared electrochemical electrodes displayed high electrocatalytic activity in the detection of epinephrine, tryptophan, maleic hydrazide, and vitamin B6, as well as high sensing stability. The results indicated that poly(EDOT- co -EDOT-AA):PSS and its composites had potential applications for various electrode coatings.