Chemical Grafting of Crosslinked Polypyrrole and Poly(vinyl Chloride) onto Modified Graphite: Fabrication, Characterization, and Material Properties. Issue 11 (23rd July 2020)

• Record Type: Journal Article
• Authors: Naz, Asima; Sattar, Rabia; Ahmed, Zahoor
• Is Part Of: Polymer-plastics technology and materials. Volume 59:Issue 11(2020)
• Page Start: 1233
• Page End: 1247
• Publication Date: 2020-07-23
• Subjects: Graphite -- multilayered nanocomposites -- in situ polymerization -- physicochemical properties -- high performance materials; Polymers -- Periodicals; Polymerization -- Periodicals; Plastics -- Periodicals; Plastics; Polymerization; Polymers; Periodicals; 668
• DOI: 10.1080/25740881.2020.1725569
• Languages: English
• ISSNs: 2574-0881

Abstract

ABSTRACT: Conjugated polymer/graphite nanocomposites have been known as high performance materials owing to improve the physicochemical properties relative to conventional once. Multilayered polymer nanocomposites based on polypyrrole (PPy), polyvinylchloride (PVC) as matrices and p -phenylene diamine (PDA) as linker were prepared via chemical in situ polymerization process and subsequently investigated the physical characteristics of fabricated nanocomposites at various loadings. The structural characterization and morphology of prepared nanocomposites were inspected by Fourier transform infrared spectroscopy (FTIR), X-ray photon spectroscopy (XPS), energy dispersive X-ray spectroscope (EDX), field emission scanning electron microscope (FESEM), respectively. The composite III showed higher thermal stability at 10 wt% loading of PPy. According to differential scanning calorimetry (DSC), the glass transition temperature ( Tg ), melting temperature Tm, and crystallization temperature ( Tc ) of nanocomposites increases with PPy loading (2–10 wt%) owing to crosslinking and chain rigidity. Moreover, higher surface area was displayed by the multilayered PPy/PVC/PDA@FG nanocomposites. Remarkably, electrical conductivity of ultimate nanocomposites was also found to be a function of PPy loading. GRAPHICAL ABSTRACT: