{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,13]],"date-time":"2026-03-13T16:54:34Z","timestamp":1773420874957,"version":"3.50.1"},"reference-count":35,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2026,3,3]],"date-time":"2026-03-03T00:00:00Z","timestamp":1772496000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,3,3]],"date-time":"2026-03-03T00:00:00Z","timestamp":1772496000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/100008970","name":"Hebei Normal University of Science and Technology","doi-asserted-by":"publisher","award":["2025YB035"],"award-info":[{"award-number":["2025YB035"]}],"id":[{"id":"10.13039\/100008970","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":[[2026,3,13]]},"abstract":"<jats:p>\n                    The chemical recycling and utilization of plastic waste and its transformation into value\u2010added chemicals are of great significance for sustainable development and have broad research prospects. Herein, we report a green, simple, mild, metal\u2010free and efficient strategy to obtain oxygen\u2010containing heterocyclic compounds by inducing the cleavage of the C\u2013O and O\u2013H bonds of polyethylene glycol (PEG) through the hydrogen bonds (HBs) of hydroxyl\u2010functionalized ionic liquids (ILs). Through experiments and theoretical calculations, it is found that the anion and cation of IL could respectively activate the O\u2013H bond of polyethylene glycol and the C=O double bond of PhCHO through hydrogen bonds, forming the transition state (TS) M1. Then, the activated hydroxyl O atom of PEG may attack the carbonyl C atom of benzaldehyde through a nucleophilic reaction, thereby forming intermediate I through an addition reaction. Subsequently, in intermediate I, the O atom activated by the ionic liquid anion ([OTf]\n                    <jats:sup>\u2212<\/jats:sup>\n                    ) conducts a nucleophilic attack on the C atom activated by the ionic liquid cation ([HO\u2010EtMIm]\n                    <jats:sup>+<\/jats:sup>\n                    ), causing the C\u2013O bond to break. Thus, a depolymerization cyclization reaction occurs, forming a new C\u2013O bond and the final target product.\n                  <\/jats:p>","DOI":"10.1002\/cssc.202502374","type":"journal-article","created":{"date-parts":[[2026,3,9]],"date-time":"2026-03-09T04:27:48Z","timestamp":1773030468000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Highly Efficient Recycling of Polyethylene Glycol With Benzaldehyde Over OH\u2010Functionalized Ionic Liquid"],"prefix":"10.1002","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0009-0006-9946-1342","authenticated-orcid":false,"given":"Xiaoqian","family":"Chang","sequence":"first","affiliation":[{"name":"College of Chemical Engineering Hebei Normal University of Science and Technology  Qinhuangdao China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yunpeng","family":"Xu","sequence":"additional","affiliation":[{"name":"Hebei Normal University of Science and Technology  Qinhuangdao China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhe","family":"Yang","sequence":"additional","affiliation":[{"name":"College of Chemical Engineering Hebei Normal University of Science and Technology  Qinhuangdao China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chunliang","family":"Hou","sequence":"additional","affiliation":[{"name":"College of Chemical Engineering Hebei Normal University of Science and Technology  Qinhuangdao China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuxiang","family":"Zhang","sequence":"additional","affiliation":[{"name":"College of Chemical Engineering Hebei Normal University of Science and Technology  Qinhuangdao China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tianqing","family":"Yin","sequence":"additional","affiliation":[{"name":"College of Chemical Engineering Hebei Normal University of Science and Technology  Qinhuangdao China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2026,3,3]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.aba3656"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10311-024-01703-9"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1038\/d41586-023-00975-5"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202206807"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1038\/nchem.2342"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-025-59875-z"},{"key":"e_1_2_9_8_1","first-page":"4128","article-title":"Accumulation of Polyethylene Glycol in Marine Ecosystems Mediates Planktonic Microbial Network Disturbances","volume":"13","author":"Du Y. 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