Conductive polyaniline–polychloroprene blends

✍ Scribed by Magali S. Pinho; Marianna M. Gorelova; Marcia Dezzoti; Bluma G. Soares; Alexander J. Pertsin

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 178 KB
• Volume: 70
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(19981121)70:8<1543::aid-app11>3.0.co;2-f

✦ Synopsis

The electrical conductivity of polychloroprene (CR)/polyaniline (Pani) blends prepared by bulk and solution processes were investigated. Pani doped with HCl (Pani ⅐ HCl) and p-toluenesulfonic acid (Pani ⅐ TSA) were employed in vulcanized blends obtained by the bulk process. These blends showed an increase in the conductivity only for blend composition of CR/Pani ϭ 50:50 wt %. At this composition, blends with Pani ⅐ HCl and Pani ⅐ pTSA presented conductivity values of 10 Ϫ9 and 10 Ϫ10 S ⅐ cm Ϫ1 , respectively. CR/Pani ⅐ HCl blend films prepared by the solution process displayed surface conductivity values of 10 Ϫ4 S ⅐ cm Ϫ1 with as low as 10 -15 wt % of PAni ⅐ HCl. Surface analysis of these blends by X-ray photoelectron spectroscopy indicated no traces of the conductive additive. The surface composition was found to be exclusively constituted of CR.