Designing n-Type Thermogalvanic TEMPO-Substituted Polyacrylamide via Conformational Entropic Modulation.

Ching-Chieh Hsu, Kohei Ishigami, Ryo Shirakawa, Hiroyuki Nishide, Kenichi Oyaizu, Cheng-Liang Liu

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Article in ACS macro letters, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1citing papers in PubMed

–field-weighted citation impact

1 · What the graph read from it

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

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3 · Its place in the literature

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1 citing paper in PubMed.

Radical Polyesters: Connecting Spacer Structure to Bulk Electrical Conductivity.ACS macro letters · 2026
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5 · Who and what money

Authors and funding

6 authors.

Ching-Chieh HsuDepartment of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan.

Kohei IshigamiDepartment of Applied Chemistry, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan.

Ryo ShirakawaDepartment of Applied Chemistry, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan.

Hiroyuki NishideDepartment of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan.ORCID 0000-0002-4036-4840

Kenichi OyaizuDepartment of Applied Chemistry, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan.ORCID 0000-0002-8425-1063

Cheng-Liang LiuDepartment of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan.ORCID 0000-0002-8778-5386

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This work pioneers the use of TEMPO-substituted polyacrylamide (PTAm) for n-type thermogalvanic (TG) systems, uniquely harnessing redox-induced conformational entropy changes to enhance the thermoelectric performance. Through the electrochemical oxidation of low-molecular-weight PTAm, which is initially water-insoluble, a water-soluble polyelectrolyte (ox-PTAm) is formed, containing both TEMPO and oxoammonium species, as indicated by cyclic voltammetry. The redox transitions induce conformational entropy changes, which are corroborated by electrochemical and thermoelectric measurements, leading to an observed n-type thermopower (α) of -0.76 mV K

Identifiers

PMID41568924

DOI10.1021/acsmacrolett.5c00762

PMCPMC12918710

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