{
  "abstract": "Blending polymers produces brittle materials due to macrophase separation and poor interfacial adhesion, which is exemplified by mixtures of polyolefins. This presents a formidable challenge for the mechanical recycling of mixed plastic waste. Here, we demonstrate that dynamic covalent crosslinking of immiscible polyolefin blends creates macrophase separated co-continuous architectures, yet they display excellent mechanical properties, which challenges the conventional wisdom regarding morphology-property relationships in polymer blend compatibilization. We find that the position and orientation of dynamic crosslinks and their influence on crystallinity are key to understanding the structure-morphology-property relationships. In particular, high-resolution microscopy imaging reveals alignment of crystallite planes with strong orientational preference, particularly at polymer-polymer interfaces, which contribute to material performance. We further demonstrate that changes in crosslinker density and valency allow the properties of binary and ternary polyolefin blends to be tuned in a modular fashion.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA",
    "University of North Carolina at Chapel Hill",
    "National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA",
    "Lawrence Berkeley National Laboratory",
    "Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA",
    "Oak Ridge National Laboratory",
    "The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA",
    "School of Environmental and Forest Sciences, University of Washington, Seattle, WA 98195, USA",
    "Stanford University",
    "Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA",
    "Department of Chemical and Biomolecular Engineering, University of California Berkeley, Berkeley, CA 94720, USA",
    "College of Chemistry Pines Magnetic Resonance Center, University of California Berkeley, Berkeley, CA 94720, USA",
    "Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 15,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Eliza K. Neidhart",
      "orcid": "0000-0001-7663-7268"
    },
    {
      "affs": [
        2,
        3
      ],
      "name": "Stephanie M. Ribet",
      "orcid": "0000-0002-7117-066X"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Taehyun A. Lee",
      "orcid": "0009-0001-0967-8286"
    },
    {
      "affs": [
        4,
        5
      ],
      "name": "Logan T. Kearney",
      "orcid": "0000-0003-0811-3483"
    },
    {
      "affs": [
        2,
        3
      ],
      "name": "Karen C. Bustillo",
      "orcid": "0000-0002-2096-6078"
    },
    {
      "affs": [
        6,
        3
      ],
      "name": "Eric A. Dailing",
      "orcid": "0000-0002-2299-7783"
    },
    {
      "affs": [
        7,
        6,
        8
      ],
      "name": "Mutian Hua",
      "orcid": "0000-0002-4079-316X"
    },
    {
      "affs": [
        9,
        1
      ],
      "name": "Colin Ophus",
      "orcid": "0000-0003-2348-8558"
    },
    {
      "affs": [
        10,
        1
      ],
      "name": "Sophia N. Fricke",
      "orcid": "0000-0002-0183-466X"
    },
    {
      "affs": [
        11,
        3
      ],
      "name": "Ah-Young Song",
      "orcid": "0000-0001-7931-0148"
    },
    {
      "affs": [
        10,
        1
      ],
      "name": "Jeffrey A. Reimer",
      "orcid": "0000-0002-4191-3725"
    },
    {
      "affs": [
        0
      ],
      "name": "Erik J. Alexanian",
      "orcid": "0000-0002-0256-2133"
    },
    {
      "affs": [
        0
      ],
      "name": "Joanna M. Atkin",
      "orcid": "0000-0002-1211-5193"
    },
    {
      "affs": [
        12,
        6
      ],
      "name": "Brett A. Helms",
      "orcid": "0000-0003-3925-4174"
    },
    {
      "affs": [
        0
      ],
      "name": "Frank A. Leibfarth",
      "orcid": "0000-0001-7737-0331"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/d8dnv5bdm6q8p.bib",
  "cited_by": 6,
  "doi": "10.1126/sciadv.aee2328",
  "fulltext_url": null,
  "id": "d8dnv5bdm6q8p",
  "issns": [
    "2375-2548"
  ],
  "landing_url": "https://doi.org/10.1126/sciadv.aee2328",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2507|Polymer crystallization and properties"
    ]
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  "openalex": "W4408165891",
  "pdf_url": null,
  "pmcid": "PMC13178546",
  "pmid": "42139337",
  "published": "2026-05-15",
  "publisher": "American Association for the Advancement of Science",
  "ris": "https://research.draconitic.com/paper/d8dnv5bdm6q8p.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T13:27:00Z",
      "native_id": "W4408165891",
      "source": "openalex",
      "url": "https://doi.org/10.1126/sciadv.aee2328"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2507|Polymer crystallization and properties",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Polyolefin blends with co-continuous architectures enabled by dynamic covalent crosslinking",
  "title_text": "Polyolefin blends with co-continuous architectures enabled by dynamic covalent crosslinking",
  "type": "peer-reviewed",
  "updated_at": "2026-11-07T13:21:07Z",
  "url": "https://research.draconitic.com/paper/d8dnv5bdm6q8p",
  "venue": "Science Advances",
  "versions": []
}