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Rapid Commun."],"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Deep eutectic solvent (DES)\u2010based eutectogels are promising soft ionic materials for flexible electronics and wearable sensors, yet their development is fundamentally limited by poor monomer compatibility in conventional Type III choline chloride\u2010based DESs. Tertiary amine\u2010functionalized monomers, such as 2\u2010(dimethylamino)ethyl methacrylate (DMAEMA), exhibit low solubility in these hydrogen\u2010bond\u2010dominated systems due to polarity and interaction mismatches, which prevents uniform precursor formation and controllable polymerization. Here, we introduce a coordination\u2010regulated solvation strategy to overcome this intrinsic limitation. By polymerizing DMAEMA in a Type IV ZnCl\n                    <jats:sub>2\u2013<\/jats:sub>\n                    acetamide metal\u2010salt DES, Zn\n                    <jats:sup>2<\/jats:sup>\n                    <jats:sup>+<\/jats:sup>\n                    \u2013amine pre\u2010coordination regulates the monomer solvation structure, enabling homogeneous dissolution and transparent gel formation. After polymerization, the retained zinc\u2013amine coordination serves as dynamic sacrificial crosslinks that dissipate mechanical energy while preserving network integrity under large deformation. The resulting eutectogels achieve high tensile strength (2.07\u00a0MPa), extreme elongation (1957%), ultrahigh toughness (23.40\u00a0MJ m\n                    <jats:sup>\u2212<\/jats:sup>\n                    <jats:sup>3<\/jats:sup>\n                    ), optical transparency (\u223c80%), autonomous self\u2010healing, and reliable strain\u2010 and pressure\u2010sensing responses. This work establishes coordination\u2010regulated solvation in metal salt\u2010based DESs as a general molecular design principle that bridges monomer processability and mechanical robustness in DES\u2010based polymer networks.\n                  <\/jats:p>","DOI":"10.1002\/marc.70272","type":"journal-article","created":{"date-parts":[[2026,4,7]],"date-time":"2026-04-07T09:06:01Z","timestamp":1775552761000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Tough, Transparent, and Multifunctional Eutectogels via Coordination\u2010Regulated Monomer Solubilization in Metal\u2010Salt Deep Eutectic Solvents"],"prefix":"10.1002","volume":"47","author":[{"given":"Pengfei","family":"Li","sequence":"first","affiliation":[{"name":"College of Science Nanjing Forestry University  Nanjing P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ziqian","family":"Xu","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering Nanjing Tech University  Nanjing P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rui","family":"Wang","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering Nanjing Tech University  Nanjing P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5567-8519","authenticated-orcid":false,"given":"Linlin","family":"Wu","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering Nanjing Tech University  Nanjing P. R. 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