Preparation and characterization of hybrid polypyrrole nanoparticles as a conducting polymer with controllable size

Mahmood, Javeed; Arsalani, Nasser; Naghash-Hamed, Samin; Hanif, Zahid; Geckeler, Kurt E.

doi:10.1038/s41598-024-61587-1

Cited by 80Conducting polymers and applicationsPolymer Nanocomposite Synthesis and IrradiationSynthesis and Characterization of Pyrroles

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Preparation and characterization of hybrid polypyrrole nanoparticles as a conducting polymer with controllable size

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Mahmood, Javeed, Arsalani, Nasser, Naghash-Hamed, Samin, Hanif, Zahid, Geckeler, Kurt E.·2024·Scientific Reports

DOI 10.1038/s41598-024-61587-1PMC PMC11109234

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Abstract

Hybrid polypyrrole (PPy) nanoparticles were prepared using a low-temperature oxidative polymerization process in an acidic solution with polyethyleneimine (PEI) as a template and amine source. The results showed that the nanoparticles have an amorphous structure in the X-ray diffractogram and exhibited good dispersibility in water, uniform size, and a specific conductivity ranging from 0.1 to 6.9 S/cm. The particle size could be tuned from 85 to 300 nm by varying the reactant concentration. Undoping the samples with sodium hydroxide (NaOH) solution altered the optical absorption properties and surface roughness of the particles. However, it did not affect the particle size. The nanoparticles also exhibited optical sensing properties based on their UV–vis absorption changes with the pH. Moreover, nanoparticles could have potential applications in gene delivery and bio-adsorption for contaminant removal. This work demonstrates a simple and effective method for preparing hybrid polypyrrole nanoparticles with controllable size, dispersibility, and conductivity for various nanotechnology, biotechnology, and environmental engineering purposes.

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The C-N stretching vibration in Ppy is noted at 1250 cm−1, critical for conjugation and electronic configuration.
“The C–N stretching vibration in Ppy is noted at 1250 cm− 1, critical for conjugation and electronic configuration [30].”
From Dual-function aerogel electrocatalyst enabling efficient hydrogen production and ambient-temperature hydrogen detection (2026) · cites this paper as [30]
The Results and discussion, FTIR analysis section (page unavailable) assigns the C–N stretching vibration to 1180 cm−1, not 1250 cm−1. It does not link that vibration to conjugation or electronic configuration. (LLM, conf=0.88)
Checked by a reasoning model — may be wrong.
Experimental — accuracy not yet measured
The decomposition of the Ppy backbone, including disintegration of its conjugated structure and emission of volatile nitrogen-containing gases, takes place between 200 and 400 ◦C.
“The decomposition of the Ppy backbone, which includes the disintegration of its conjugated structure as well as the emission of volatile compounds such as gasses containing nitrogen, takes place between 200 and 400 ◦C [30].”
From Dual-function aerogel electrocatalyst enabling efficient hydrogen production and ambient-temperature hydrogen detection (2026) · cites this paper as [30]
The Results and discussion, TGA studies section reports that PPy degradation starts around 200 °C, but continues up to 600 °C rather than ending at 400 °C. It does not describe disintegration of the conjugated structure or emission of volatile nitrogen-containing gases. (LLM, conf=0.88)
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Authors: Mahmood, J., Arsalani, N., Naghash-Hamed, S., Hanif, Z., & Geckeler, K. E.
Affiliations: King Abdullah University of Science and Technology (SA)
University of Tabriz (IR)
Korea University of Technology and Education (KR)
Gwangju Institute of Science and Technology (KR)
Corresponding author: Geckeler, Kurt E.
ORCID: Mahmood, Javeed
Arsalani, Nasser
Hanif, Zahid
Geckeler, Kurt E.
Venue: Scientific Reports
Publisher: Springer Science and Business Media LLC
Published: 2024-05-22
Volume: 14
Issue: 1
Pages: 11653-11653
ISSN: 2045-2322 (ISSN-L)
DOI: 10.1038/s41598-024-61587-1
PMC: PMC11109234
OpenAlex: W4398219241
Cited by: 79
References: 48
Citations by year: 2026: 37 · 2025: 33 · 2024: 9
FWCI: 8.39
Type: journal article
Language: en
Open access: gold
doi.org
Licence: cc-by
creativecommons.org/licenses/by/4.0 (tdm)
creativecommons.org/licenses/by/4.0 (vor)
Locations: Scientific Reports (publishedVersion, cc-by)
PubMed Central (publishedVersion, cc-by)
PubMed (publishedVersion)
DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders: Gwangju Institute of Science and Technology (R31-2008-000-10026-0)
Ministry of Education, Science and Technology (R31-2008-000-10026-0)
Topics: Physical Sciences › Materials Science › Polymers and Plastics › Conducting polymers and applications
Physical Sciences › Materials Science › Polymers and Plastics › Polymer Nanocomposite Synthesis and Irradiation
Physical Sciences › Chemistry › Organic Chemistry › Synthesis and Characterization of Pyrroles
Keywords: polypyrrole nanoparticles, hybrid nanostructures, conducting polymers, oxidative polymerization, particle size control, electrical conductivity, optical absorption, pH sensing, gene delivery, biosorption, pollutant removal

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Preparation and characterization of hybrid polypyrrole nanoparticles as a conducting polymer with controllable size

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