Chemical and electrochemical grafting of polypyrrole onto thiophene-functionalized polystyrene macromonomer. (March 2015)

• Record Type: Journal Article
• Authors: Hatamzadeh, Maryam; Mohammad-Rezaei, Rahim; Jaymand, Mehdi
• Is Part Of: Materials science in semiconductor processing. Volume 31(2015:Mar.)
• Page Start: 463
• Page End: 470
• Publication Date: 2015-03
• Subjects: Polystyrene -- Polypyrrole -- Electrochemical polymerization -- Chemical polymerization -- Graft copolymer -- Processability; Semiconductors -- Periodicals; Integrated circuits -- Materials -- Periodicals; Semiconducteurs -- Périodiques; Circuits intégrés -- Matériaux -- Périodiques; Electronic journals; 621.38152
• DOI: 10.1016/j.mssp.2014.12.015
• Languages: English
• ISSNs: 1369-8001

Abstract

Abstract: In this paper, chemical and electrochemical graft copolymerization of pyrrole onto thiophene-functionalized polystyrene multicenter macromonomer (ThPStM) is described. The polystyrene- g -polypyrrole (PSt- g -PPy) obtained was characterized by means of Fourier transform infrared (FTIR) spectroscopy, and its electroactivity behavior was verified under cyclic voltammetric conditions in acetonitrile (ACN)–tetraethylammonium tetrafluoroborate (TEAFB) solvent–electrolyte couple and compared with electroactivity behavior of pure polypyrrole. Electrical conductivities of the samples were measured using samples in which the conductive materials were sandwiched between two Ni electrodes at room temperature. The chemical composition and molecular weight of the PSt- g -PPy graft copolymer were determined by means of elemental analysis, and gel permeation chromatography (GPC), respectively. Moreover, thermal behaviors of the synthesized polymers were investigated by means of differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA).