{
  "abstract": "Low-molecular-weight CO2-based poly(carbonate-ether) polyols from ring-opening copolymerization (ROCOP) of propylene oxide (PO) with CO2 are highly desired as soft blocks to synthesize sustainable polyurethanes. However, such process remains great challenges because of the demanding of highly proton-tolerant catalysts. Herein, we report a binary organocatalysis system based on a nanoscopic multicenter borane Lewis acid (POSS-B8) combined with various organobases for the tunable ROCOP of PO and CO2. The confined POSS-B8 framework not only endows excellent tolerance to proton but enables cooperative activation of PO and CO2, thereby facilitating PO/CO2 ROCOP while effectively suppressing the formation of cyclic propene carbonate (cPC). Remarkably, the binary system can tolerate high loadings of chain-transfer agents (up to 400 equivalents), affording low-molecular-weight polycarbonate polyols (0.6 kDa) with narrow dispersity (Ð = 1.16). By tuning POSS-B8 loading and CO2 pressure, both the carbonate content (19-64 mol%) and glass transition temperature (-58.6 to 4.7 °C) of resulting polymers can be modulated. This metal-free and tunable platform offers a versatile strategy for the preparation of CO2-based poly(carbonate-ether) polyols with controlled structure and strong potential for industrial applications.",
  "abstract_shown": true,
  "affiliations": [
    "State Key Laboratory of Advanced Optical Polymer and Manufacturing Technology, College of Polymer Science and Engineering",
    "Qingdao University of Science and Technology",
    "State Key Laboratory of Chemical Engineering and Low-carbon Technology, College of Chemical and Biological Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang, China, 310058",
    "Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 8,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Minghao Liu"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Lihang Jiang"
    },
    {
      "affs": [
        2
      ],
      "name": "Zehao Wang"
    },
    {
      "affs": [
        3,
        1
      ],
      "name": "Chenyao Yuan"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Zhenwei Zhou"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Jinbo Zhang"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Shaofeng Liu",
      "orcid": "0000-0002-1230-0946"
    },
    {
      "affs": [
        0,
        1,
        2,
        3
      ],
      "name": "Zhibo Li",
      "orcid": "0000-0001-9512-1507"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/b9kf9bn60jv2m.bib",
  "cited_by": 0,
  "doi": "10.26434/chemrxiv.15010012/v1",
  "fulltext_url": null,
  "id": "b9kf9bn60jv2m",
  "issns": [],
  "landing_url": "https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010012/v1",
  "language": null,
  "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",
      "1508|Carbon dioxide utilization in catalysis"
    ]
  ],
  "openalex": "W7220854040",
  "pdf_url": "https://chemrxiv.org/doi/pdf/10.26434/chemrxiv.15010012/v1",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-07",
  "publisher": "American Chemical Society (ACS)",
  "ris": "https://research.draconitic.com/paper/b9kf9bn60jv2m.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:22Z",
      "native_id": "10.26434/chemrxiv.15010012",
      "source": "chemrxiv",
      "url": "https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010012/v1"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "source:chemrxiv",
      "subfield": "general"
    }
  ],
  "title": "A Highly Proton-Tolerant Multicenter Borane/Phosphazene Catalytic System for Efficient PO/CO2 Copolymerization toward CO2-Based Poly(carbonate-ether) Polyols",
  "title_text": "A Highly Proton-Tolerant Multicenter Borane/Phosphazene Catalytic System for Efficient PO/CO2 Copolymerization toward CO2-Based Poly(carbonate-ether) Polyols",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:22Z",
  "url": "https://research.draconitic.com/paper/b9kf9bn60jv2m",
  "venue": "ChemRxiv",
  "versions": []
}