{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,26]],"date-time":"2026-09-26T10:00:29Z","timestamp":1790416829818,"version":"4.1.0"},"reference-count":31,"publisher":"Wiley","issue":"18","license":[{"start":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T00:00:00Z","timestamp":1789603200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"},{"start":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T00:00:00Z","timestamp":1789603200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001863","name":"New Energy and Industrial Technology Development Organization","doi-asserted-by":"publisher","award":["P19004"],"award-info":[{"award-number":["P19004"]}],"id":[{"id":"10.13039\/501100001863","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002241","name":"Japan Science and Technology Agency","doi-asserted-by":"publisher","award":["JPMJSP2142"],"award-info":[{"award-number":["JPMJSP2142"]}],"id":[{"id":"10.13039\/501100002241","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":[[2026,9,28]]},"abstract":"<jats:p>Chemical recycling of polystyrene (PS) by high\u2010temperature pyrolysis can recover styrene monomer, but conventional processes require substantial energy input and generate complex, nonrecyclable byproducts. Here, we report an additive\u2010free continuous\u2010flow depolymerization of PS using localized microwave (MW) heating. A toluene solution of PS was passed through a quartz cartridge packed with spherical activated carbon beads (CBs), which concentrate MW energy and create a confined high\u2010temperature reaction zone. Using a temperature\u2010controlled single\u2010mode MW reactor, the effects of backpressure and feed delivery were examined with reagent\u2010grade PS and postconsumer PS products, including takeout trays and containers. Backpressure was found to be essential for stable styrene production. Without backpressure, channel occlusion occurred and the styrene yield reached only 19% after 4\u2009h, whereas 0.5\u2009MPa backpressure enabled 70%\u201376% styrene yield after 24\u2009h. Postconsumer PS feeds also afforded 67%\u201376% styrene yield, comparable to reagent\u2010grade PS. The coproducts were mainly limited to dimers and trimers, supporting distillative styrene recovery. This cartridge\u2010based MW\u2010flow system provides a simple route for direct styrene recovery from diverse PS waste streams under low\u2010power, localized heating conditions.<\/jats:p>","DOI":"10.1002\/cssc.71054","type":"journal-article","created":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T18:16:07Z","timestamp":1789668967000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Continuous\u2010Flow Conversion of Waste Polystyrene Into Styrene Monomers Utilizing the Microwave\u2010Concentration Effect on Spherical Activated Carbon"],"prefix":"10.1002","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0009-0002-5885-348X","authenticated-orcid":false,"given":"Naoya","family":"Sakurada","sequence":"first","affiliation":[{"name":"Laboratory of Advanced Chemistry Gifu Pharmaceutical University  Gifu Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takanori","family":"Kitazono","sequence":"additional","affiliation":[{"name":"Laboratory of Advanced Chemistry Gifu Pharmaceutical University  Gifu Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Madoka","family":"Ikawa","sequence":"additional","affiliation":[{"name":"Laboratory of Pharmaceutical Physical Chemistry Gifu Pharmaceutical University  Gifu Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9773-1429","authenticated-orcid":false,"given":"Naoki","family":"Doi","sequence":"additional","affiliation":[{"name":"Laboratory of Pharmaceutical Physical Chemistry Gifu Pharmaceutical University  Gifu Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1642-3273","authenticated-orcid":false,"given":"Takashi","family":"Ikawa","sequence":"additional","affiliation":[{"name":"Laboratory of Advanced Chemistry Gifu Pharmaceutical University  Gifu Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2792-6826","authenticated-orcid":false,"given":"Hironao","family":"Sajiki","sequence":"additional","affiliation":[{"name":"Laboratory of Advanced Chemistry Gifu Pharmaceutical University  Gifu Japan"},{"name":"Faculty of Engineering Department of Applied Chemistry Aichi Institute of Technology  Toyota Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,9,17]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.polymdegradstab.2005.01.048"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.wasman.2017.07.044"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10924-020-01741-8"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/marc.202000415"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.est.0c07718"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41893-022-01054-9"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.1038\/s44296-024-00024-w"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/cssc.202400474"},{"key":"e_1_2_9_10_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41586-025-09184-8"},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-025-64561-1"},{"key":"e_1_2_9_12_1","doi-asserted-by":"publisher","DOI":"10.1038\/s42004-025-01728-3"},{"key":"e_1_2_9_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0378-3820(99)00066-1"},{"key":"e_1_2_9_14_1","doi-asserted-by":"publisher","DOI":"10.1021\/ef030102l"},{"key":"e_1_2_9_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.wasman.2014.01.005"},{"key":"e_1_2_9_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cherd.2023.05.039"},{"key":"e_1_2_9_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.resconrec.2024.107558"},{"key":"e_1_2_9_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cej.2024.152079"},{"key":"e_1_2_9_19_1","doi-asserted-by":"publisher","DOI":"10.1021\/acscentsci.4c01317"},{"key":"e_1_2_9_20_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202521912"},{"key":"e_1_2_9_21_1","doi-asserted-by":"publisher","DOI":"10.1021\/jp2076269"},{"key":"e_1_2_9_22_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.apcata.2013.04.022"},{"key":"e_1_2_9_23_1","doi-asserted-by":"publisher","DOI":"10.1039\/c3cy00753g"},{"key":"e_1_2_9_24_1","doi-asserted-by":"publisher","DOI":"10.3390\/catal10070777"},{"key":"e_1_2_9_25_1","doi-asserted-by":"publisher","DOI":"10.1021\/acssuschemeng.8b04655"},{"key":"e_1_2_9_26_1","doi-asserted-by":"publisher","DOI":"10.3390\/catal9080655"},{"key":"e_1_2_9_27_1","doi-asserted-by":"publisher","DOI":"10.1038\/s42004-023-00880-y"},{"key":"e_1_2_9_28_1","doi-asserted-by":"publisher","DOI":"10.3390\/catal14060384"},{"key":"e_1_2_9_29_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0141-3910(97)00036-0"},{"key":"e_1_2_9_30_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.polymdegradstab.2008.01.029"},{"key":"e_1_2_9_31_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacsau.3c00345"},{"key":"e_1_2_9_32_1","doi-asserted-by":"publisher","DOI":"10.1039\/D3SC05143A"}],"container-title":["ChemSusChem"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/chemistry-europe.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/cssc.71054","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/chemistry-europe.onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/cssc.71054","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/chemistry-europe.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/cssc.71054","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,26]],"date-time":"2026-09-26T09:52:33Z","timestamp":1790416353000},"score":1,"resource":{"primary":{"URL":"https:\/\/chemistry-europe.onlinelibrary.wiley.com\/doi\/10.1002\/cssc.71054"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9,17]]},"references-count":31,"journal-issue":{"issue":"18","published-print":{"date-parts":[[2026,9,28]]}},"alternative-id":["10.1002\/cssc.71054"],"URL":"https:\/\/doi.org\/10.1002\/cssc.71054","archive":["Portico"],"relation":{},"ISSN":["1864-5631","1864-564X"],"issn-type":[{"value":"1864-5631","type":"print"},{"value":"1864-564X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,9,17]]},"assertion":[{"value":"2026-04-27","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-08-26","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-09-17","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e71054"}}