{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T09:50:58Z","timestamp":1791798658144,"version":"4.3.4"},"reference-count":53,"publisher":"Wiley","issue":"19","license":[{"start":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T00:00:00Z","timestamp":1791763200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T00:00:00Z","timestamp":1791763200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/100000015","name":"U.S. Department of Energy","doi-asserted-by":"publisher","award":["DE\u2010SC0022238"],"award-info":[{"award-number":["DE\u2010SC0022238"]}],"id":[{"id":"10.13039\/100000015","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["chemistry-europe.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["ChemSusChem"],"published-print":{"date-parts":[[2026,10,14]]},"abstract":"<jats:p>\n                    The aerobic oxidation of long\u2010chain hydrocarbons provides a direct route to introduce oxygen\u2010containing functionality into polyolefin backbones but is intrinsically coupled to C\u2500C bond scission through radical autoxidation pathways. Here we examine the oxidation of\n                    <jats:italic>n<\/jats:italic>\n                    \u2010eicosane (C\n                    <jats:sub>20<\/jats:sub>\n                    ) and low\u2010molecular\u2010weight polyethylene (PE4k) under O\n                    <jats:sub>2<\/jats:sub>\n                    in the presence of 2,2\u2032\u2010azobis(2\u2010methylpropionitrile) (AIBN) or acetic acid (HOAc). AIBN and HOAc efficiently initiate autoxidation at 90\u2013125\u2009\u00b0C, producing ketone and alcohol products at moderate conversion. Increasing temperature and oxygen partial pressure enhance overall conversion to oxidized products but promote C\u2500C bond cleavage and formation of lower\u2010molecular\u2010weight products consistent with a \u03b2\u2010scission reaction pathway. Similar trends are observed for PE4k, where the additives promote CH\n                    <jats:sub>2<\/jats:sub>\n                    group oxidation but reduce molecular weight at high temperatures or with high oxygen pressure. Low levels of oxygen incorporation were achieved with low chain scission at reduced oxygen partial pressure. The AIBN and HOAc reactions proceed via different radical initiations but are proposed to converge to a common autoxidation radical chain propagation mechanism. Across both substrates, oxygen concentration and reaction temperature control the balance between functionalization and polymer backbone cleavage, defining an operational window for selective oxidative modification of polyolefins.\n                  <\/jats:p>","DOI":"10.1002\/cssc.71130","type":"journal-article","created":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T09:39:59Z","timestamp":1791797999000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Controlled Oxidation of\n                    <i>n<\/i>\n                    \u2010Eicosane and Low\u2010Molecular\u2010Weight Polyethylene"],"prefix":"10.1002","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-5587-096X","authenticated-orcid":false,"given":"Zhuoming","family":"Feng","sequence":"first","affiliation":[{"name":"Department of Chemical and Biomolecular Engineering University of Pennsylvania  Philadelphia Pennsylvania USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5029-7151","authenticated-orcid":false,"given":"Maura","family":"Gibbs","sequence":"additional","affiliation":[{"name":"Department of Chemistry University of Pennsylvania  Philadelphia Pennsylvania USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-5609-1036","authenticated-orcid":false,"given":"Anaise","family":"Thomas","sequence":"additional","affiliation":[{"name":"Department of Chemistry University of Pennsylvania  Philadelphia Pennsylvania USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8660-761X","authenticated-orcid":false,"given":"Pedro Jimenez","family":"Antenucci","sequence":"additional","affiliation":[{"name":"Department of Chemistry University of Pennsylvania  Philadelphia Pennsylvania USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-0945-3558","authenticated-orcid":false,"given":"Hoda Shokrollahzadeh","family":"Behbahani","sequence":"additional","affiliation":[{"name":"Department of Materials Science and Engineering University of Pennsylvania  Philadelphia Pennsylvania USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5856-3410","authenticated-orcid":false,"given":"Karen I.","family":"Winey","sequence":"additional","affiliation":[{"name":"Department of Chemical and Biomolecular Engineering University of Pennsylvania  Philadelphia Pennsylvania USA"},{"name":"Department of Materials Science and Engineering University of Pennsylvania  Philadelphia Pennsylvania USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4225-7125","authenticated-orcid":false,"given":"Marisa C.","family":"Kozlowski","sequence":"additional","affiliation":[{"name":"Department of Chemistry University of Pennsylvania  Philadelphia Pennsylvania USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0124-1709","authenticated-orcid":false,"given":"Karen I.","family":"Goldberg","sequence":"additional","affiliation":[{"name":"Department of Chemistry University of Pennsylvania  Philadelphia Pennsylvania USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8283-5241","authenticated-orcid":false,"given":"John M.","family":"Vohs","sequence":"additional","affiliation":[{"name":"Department of Chemical and Biomolecular Engineering University of Pennsylvania  Philadelphia Pennsylvania USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,10,12]]},"reference":[{"key":"e_1_2_10_2_1","volume-title":"Global Plastics Outlook","author":"Meral G.","year":"2022"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1126\/sciadv.1700782"},{"key":"e_1_2_10_4_1","volume-title":"The New Plastics Economy Rethinking the Future of Plastics","author":"Agenda I.","year":"2016"},{"key":"e_1_2_10_5_1","volume-title":"Polyolefin Fibres","author":"Kim Y. 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