{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,18]],"date-time":"2026-02-18T03:44:39Z","timestamp":1771386279639,"version":"3.50.1"},"reference-count":39,"publisher":"Wiley","issue":"16","license":[{"start":{"date-parts":[[2025,5,12]],"date-time":"2025-05-12T00:00:00Z","timestamp":1747008000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100003787","name":"Natural Science Foundation of Hebei Province","doi-asserted-by":"publisher","award":["B2022201066"],"award-info":[{"award-number":["B2022201066"]}],"id":[{"id":"10.13039\/501100003787","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Macromol. Rapid Commun."],"published-print":{"date-parts":[[2025,8]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Two mono\u2010benzoxazines are synthesized from 2\u2010(2\u2010hydroxyethoxy)phenol, aniline, furfurylamine, and formaldehyde, respectively. The ring\u2010opening polymerization (ROP) of the two mono\u2010benzoxazines is studied with differential scanning calorimetry, Fourier transform infrared spectroscopy, nuclear magnetic resonance, and electrospray ionization mass spectrometry. Compared to phenol\u2010aniline\u2010based benzoxazine, both 2\u2010hydroxyethoxy and\n                    <jats:italic>N<\/jats:italic>\n                    \u2010furfuryl groups can reduce the ROP temperature. Side reactions related to the 2\u2010hydroxyethoxy and\n                    <jats:italic>N<\/jats:italic>\n                    \u2010furfuryl groups are involved in the ROP. The ring\u2010opening reaction leads to the formation of zwitterion intermediates, which undergo chain propagation to form oligomeric zwitterions and series of cyclic and linear oligomers in the early stage of ROP, indicating that the same benzoxazine monomer can polymerize into different polymers through different ROP pathways. Based on the experimental results, the ROP pathways are proposed and validated by density functional theory calculations.\n                  <\/jats:p>","DOI":"10.1002\/marc.202500210","type":"journal-article","created":{"date-parts":[[2025,5,27]],"date-time":"2025-05-27T08:21:54Z","timestamp":1748334114000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Synthesis and Ring\u2010Opening Polymerization of Mono\u2010Benzoxazines Based on 2\u2010(2\u2010Hydroxyethoxy)phenol and Aniline\/Furfurylamine"],"prefix":"10.1002","volume":"46","author":[{"given":"Zongran","family":"Zhang","sequence":"first","affiliation":[{"name":"Key Laboratory of Analytical Science and Technology of Hebei Province College of Chemistry and Materials Science Hebei University  Baoding 071002 P. R. 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China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hongzan","family":"Song","sequence":"additional","affiliation":[{"name":"Key Laboratory of Analytical Science and Technology of Hebei Province College of Chemistry and Materials Science Hebei University  Baoding 071002 P. R. China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2886-6554","authenticated-orcid":false,"given":"Yanfang","family":"Liu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Analytical Science and Technology of Hebei Province College of Chemistry and Materials Science Hebei University  Baoding 071002 P. R. 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