Dielectric Energy Storage Performance of Reductive Polyaniline/Polyethylenimine All-Organic Composite Films with Tunable Molecular Weight and Chain Structure.

Yuanfeng Li, Jingyu Lin, Ruihang Zhang, Xinyan Zhang, Shumu Zhou, Qixin Zhuang, Peiyuan Zuo

Abstract read

In one paragraph

Article in Polymers, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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7 authors.

Yuanfeng LiKey Laboratory of Advanced Polymeric Materials of Shanghai, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.

Jingyu LinKey Laboratory of Advanced Polymeric Materials of Shanghai, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.ORCID 0009-0009-2986-7816

Ruihang ZhangKey Laboratory of Advanced Polymeric Materials of Shanghai, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.ORCID 0009-0005-2412-9591

Xinyan ZhangKey Laboratory of Advanced Polymeric Materials of Shanghai, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.

Shumu ZhouKey Laboratory of Advanced Polymeric Materials of Shanghai, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.

Qixin ZhuangKey Laboratory of Advanced Polymeric Materials of Shanghai, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.

Peiyuan ZuoKey Laboratory of Advanced Polymeric Materials of Shanghai, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.

Funding

National Natural Science Foundation of China 52573077, 52373073, 52303083Shanghai Science and Technology Development Foundation 24QA2701800

6 · The paper itself

Abstract

High-efficiency energy storage technologies have become particularly crucial with the ever-increasing demand for energy in recent years. Research on polymer nanocomposite dielectric materials has emerged as a prominent focus. Particularly, there is an urgent demand for the development of advanced dielectric film materials that exhibit superior energy storage performance over a wide temperature range. To this end, this study aims to investigate the effect of the molecular weight of reduced polyaniline (R-PANI) on the dielectric properties of all-organic composite films based on high-temperature-resistant polyetherimide (PEI). All-organic R-PANI/PEI composite films were fabricated by blending PEI matrix with R-PANI of varying molecular weights. Through combined density functional theory (DFT) calculations and experimental measurements, the blocking mechanism of R-PANI on charge carrier migration within the composite films was elucidated, showing a significant enhancement in the discharge energy density of PEI polymers while maintaining high charge-discharge efficiency. With charge-discharge efficiency maintained above 95%, R-PANI3/PEI achieved a discharge energy density of 2.36 J cm

Indexed as

discharge energy densitypolyetherimidepolymer nanocomposite dielectricsreduced polyaniline (R-PANI)wide-temperature energy storage

Identifiers

PMID42122707

DOI10.3390/polym18091080

PMCPMC13166043

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.