{
  "abstract": "Transparent self‐healable polyimides are attractive for flexible, wearable, and sustainable electronic devices, but achieving high transparency, rapid healing, and mechanical robustness within a single material remains challenging. Herein, we report a bio‐based aliphatic–aromatic polyimide platform that addresses this challenge through the cooperative molecular design of an isosorbide‐derived dianhydride (ISSDA), 4,4′‐oxydiphthalic anhydride, cystamine, and a bio‐based long‐chain aliphatic diamine (DDA). Unlike conventional aromatic polyimides, the nonplanar and nonconjugated ISSDA structure reduces charge‐transfer complex formation and prevents compact chain packing, enabling high optical transparency in a self‐healable polyimide network. The DDA segment further introduces controlled chain flexibility, lowers the effective healing barrier, and improves segmental mobility required for dynamic disulfide exchange. As a result, the optimized film achieved over 95% transmittance above 650 nm, thermal healing within 4 min at 150°C, and only a 7.8% loss in toughness after healing. DFT/TD‐DFT analyses confirmed that ISSDA suppresses and blueshifts the near‐UV electronic transitions relevant to visible transparency, while WAXD analysis revealed enlarged interchain d‐spacing and increased amorphous packing. This study provides a bio‐derived and structurally tunable route to transparent, tough, and rapidly self‐healable engineering polyimides.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Polymer Science and Engineering and Program in Environmental and Polymer Engineering Inha University Incheon Republic of Korea",
    "Interface Material and Chemical Engineering Research Center Korea Research Institute of Chemical Technology Daejeon Republic of Korea",
    "Hydrogen Energy Research Center Korea Research Institute of Chemical Technology Daejeon Republic of Korea"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 8,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Jisu Jang"
    },
    {
      "affs": [
        0
      ],
      "name": "Woojin Kang"
    },
    {
      "affs": [
        0
      ],
      "name": "Yeongseok Seo"
    },
    {
      "affs": [
        0
      ],
      "name": "Gyu Hyoung Bae"
    },
    {
      "affs": [
        0
      ],
      "name": "Jeong Yeon Yoo"
    },
    {
      "affs": [
        1
      ],
      "name": "Sang Goo Lee"
    },
    {
      "affs": [
        2
      ],
      "name": "Keun‐Hwan Oh",
      "orcid": "0000-0001-8394-9737"
    },
    {
      "affs": [
        0
      ],
      "name": "Hong Suk Kang",
      "orcid": "0000-0002-6581-6639"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/99qh6bppdp3q0.bib",
  "cited_by": 0,
  "doi": "10.1002/smll.75559",
  "fulltext_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC13742889/",
  "id": "99qh6bppdp3q0",
  "issns": [
    "1613-6810",
    "1613-6829"
  ],
  "landing_url": "https://doi.org/10.1002/smll.75559",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Research Article"
    ],
    [
      "openalex",
      "2507|Polymer composites and self-healing"
    ]
  ],
  "openalex": "W7207587302",
  "pdf_url": "https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/smll.75559",
  "pmcid": "PMC13742889",
  "pmid": "42689332",
  "published": "2026-09-03",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/99qh6bppdp3q0.ris",
  "sources": [
    {
      "first_seen": "2026-11-10T12:23:38Z",
      "native_id": "PMC13742889",
      "source": "pmc",
      "url": "https://doi.org/10.1002/smll.75559"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2507|Polymer composites and self-healing",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Bio‐Based Transparent Self‐Healable Polyimides Enabled by Isosorbide‐Derived Dianhydride Design and Aliphatic Chain‐Mobility Regulation",
  "title_text": "Bio‐Based Transparent Self‐Healable Polyimides Enabled by Isosorbide‐Derived Dianhydride Design and Aliphatic Chain‐Mobility Regulation",
  "type": "peer-reviewed",
  "updated_at": "2026-11-10T12:23:38Z",
  "url": "https://research.draconitic.com/paper/99qh6bppdp3q0",
  "venue": "Small (Weinheim an Der Bergstrasse, Germany)",
  "versions": []
}