Preparation and study of PPy/PEO blend nanocomposite films properties doped with GO: AgNO3 hybrid NPs

Fadil, Marwan M.; Hammed, Mohammed Ghazi

doi:10.37652/juaps.2025.160598.1382

	Preparation and study of PPy/PEO blend nanocomposite films properties doped with GO: AgNO3 hybrid NPs
Journal of University of Anbar for Pure Science
Volume 20, Issue 1, April 2026, Pages 201-209 PDF (3.32 M)
Document Type: Research Paper
DOI: 10.37652/juaps.2025.160598.1382
Authors
Marwan M. Fadil; Mohammed Ghazi Hammed^*
Physics Department, College of Science, University of Anbar, Ramadi, Iraq
Abstract
One promising approach for developing multifunctional hybrid nanocomposite films is the incorporation of hybrid nanoparticles into conductive polymer blends. In this work, a 50:50 polypyrrole/polyethylene oxide (PPy/PEO) blend doped with graphene oxide (GO) and silver nitrate (AgNO3) nanoparticles at different concentrations (3–12 wt%) was examined to explore structural and morphological changes in the film matrix. The effects of nanoparticle incorporation on crystallinity, phase compatibility, and surface behavior were investigated: structural properties by XRD, chemical properties by FTIR, and morphology and surface features by FESEM and AFM examinations. At 12 wt% loading, GO’s oxygenated groups anchor AgNO3 nanoparticles, enabling uniform dispersion and interfacial bridging between PPy’s rigid domains and PEO’s flexible matrix. XRD revealed a reduction in PEO crystallinity (up to 40% at 12 wt%), attributed to GO’s disruption of molecular ordering. FESEM images confirmed phase-separated morphologies, with GO sheets forming wrinkled networks in PEO-rich regions and Ag nanoparticles aggregating in PPy domains. AFM surface roughness trends (RMS: 4.22 nm at 3 wt% to 1.61 nm at 12 wt%) highlight nanoparticle-induced smoothing at higher concentrations.
Keywords
AgNO3; Graphene oxide; Hybrid nanofillers; Polyethylene oxide; Polypyrrole blend

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