{
  "abstract": "The controlled supramolecular assembly of poly(amic acid) ammonium salt (PAAS), a water-soluble polyimide precursor, with branched polyethyleneimine (PEI) is reported. By systematically varying the PAAS:PEI mass ratio, stable non-stoichiometric polyelectrolyte complex (PEC) nanoparticles are obtained, whose size, surface charge, and internal architecture are governed by the polymer in excess. Dynamic Light Scattering (DLS) reveals a non-linear evolution of hydrodynamic diameter, highlighting a pronounced chain compaction occurring in PEI-rich regimes. Transmission Electron Microscopy (TEM) provided morphological evidence of a core-shell organization governed by the polyelectrolyte in excess. Beyond colloidal characterization, these PEC nanoparticle dispersions can be readily cast into homogeneous films. Subsequent thermal treatment showed that complexation does not prevent imidization, supporting this approach as an aqueous route toward nanostructured polyimide-based films.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 7,
  "authors": [
    {
      "name": "Josaphat Ngnagoia"
    },
    {
      "name": "Lauran Mama"
    },
    {
      "name": "Stanis Kabayo"
    },
    {
      "name": "Frédéric Gobeaux"
    },
    {
      "name": "Florent Malloggi"
    },
    {
      "name": "Patrick Guenoun"
    },
    {
      "name": "Damien Quemener"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/ch51qwd944meh.bib",
  "cited_by": 0,
  "doi": "10.1016/j.colsurfa.2026.141544",
  "fulltext_url": null,
  "id": "ch51qwd944meh",
  "issns": [
    "0927-7757",
    "1873-4359"
  ],
  "landing_url": "https://hal.science/hal-05733297v1",
  "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": [
    [
      "hal",
      "0.chim"
    ],
    [
      "hal",
      "1.chim.poly"
    ],
    [
      "hal",
      "1.chim.theo"
    ],
    [
      "openalex",
      "2507|Synthesis and properties of polymers"
    ]
  ],
  "openalex": "W7202359480",
  "pdf_url": "https://hal.science/hal-05733297/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-05",
  "publisher": "Elsevier",
  "ris": "https://research.draconitic.com/paper/ch51qwd944meh.ris",
  "sources": [
    {
      "first_seen": "2026-11-06T12:20:44Z",
      "native_id": "hal-05733297",
      "source": "hal",
      "url": "https://hal.science/hal-05733297v1"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "hal:1.chim.poly",
      "subfield": "materials-polymers"
    },
    {
      "field": "chemistry",
      "origin": "hal:1.chim.theo",
      "subfield": "theoretical"
    }
  ],
  "title": "Composition-controlled assembly of poly(amic acid) salt and polyethyleneimine into core-shell polyelectrolyte complexes",
  "title_text": "Composition-controlled assembly of poly(amic acid) salt and polyethyleneimine into core-shell polyelectrolyte complexes",
  "type": "peer-reviewed",
  "updated_at": "2026-11-07T12:20:25Z",
  "url": "https://research.draconitic.com/paper/ch51qwd944meh",
  "venue": "Colloids and Surfaces A: Physicochemical and Engineering Aspects",
  "versions": []
}