{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,9]],"date-time":"2026-01-09T20:31:54Z","timestamp":1767990714889,"version":"3.49.0"},"reference-count":40,"publisher":"MDPI AG","issue":"20","license":[{"start":{"date-parts":[[2022,10,20]],"date-time":"2022-10-20T00:00:00Z","timestamp":1666224000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["22173116"],"award-info":[{"award-number":["22173116"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["2462020YXZZ019"],"award-info":[{"award-number":["2462020YXZZ019"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100010244","name":"Science Foundation of China University of Petroleum, Beijing","doi-asserted-by":"publisher","award":["22173116"],"award-info":[{"award-number":["22173116"]}],"id":[{"id":"10.13039\/501100010244","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100010244","name":"Science Foundation of China University of Petroleum, Beijing","doi-asserted-by":"publisher","award":["2462020YXZZ019"],"award-info":[{"award-number":["2462020YXZZ019"]}],"id":[{"id":"10.13039\/501100010244","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>Co-crystallization plays a crucial role in the integration and regulation of thermal and mechanical properties in polymer blends, but the poor compatibility of the components in the crystal phase has always been a major obstacle to co-crystallization, which puts forward stricter requests for linkage and interaction between different entities. On the basis of the hydrogen-bonding interaction that can promote chain stacking and thus improve miscibility, we propose that crystalline\/crystalline blends of 2-ureido-4[1H]-pyrimidinone (UPy)-functionalized poly(butylene succinate) and poly(butylene fumarate) (PBS-UPy\/PBF-UPy) where UPy groups with quadruple hydrogen-bonding interaction are employed to connect different chain ends, could inhibit phase separation and improve co-crystallization. PBS-UPy\/PBF-UPy blends exhibit complex component-dependent and cooling-rate-dependent co-crystallization behavior. A high level of co-crystallization occurs in the range of PBS-UPy-rich fractions, and the proportion could approach over 98% under optimized conditions with the aid of UPy quadruple hydrogen bonds interaction. This work enriches the understanding of co-crystallization in crystalline\/crystalline polymer blends and provides more possibility for the design of structures and properties of polymer materials.<\/jats:p>","DOI":"10.3390\/molecules27207086","type":"journal-article","created":{"date-parts":[[2022,10,20]],"date-time":"2022-10-20T22:49:46Z","timestamp":1666306186000},"page":"7086","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Promoting Co-Crystallization in Poly(butylene succinate) and Poly(butylene fumarate) Blends via End-Group Functionalization"],"prefix":"10.3390","volume":"27","author":[{"given":"Xue-Wei","family":"Wei","sequence":"first","affiliation":[{"name":"Department of Materials Science and Engineering, College of New Energy and Materials, China University of Petroleum, Beijing 102249, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cong","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Materials Science and Engineering, College of New Energy and Materials, China University of Petroleum, Beijing 102249, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tian-Yu","family":"Wu","sequence":"additional","affiliation":[{"name":"Department of Materials Science and Engineering, College of New Energy and Materials, China University of Petroleum, Beijing 102249, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Li-Hai","family":"Cai","sequence":"additional","affiliation":[{"name":"Institute of Systems Engineering, AMS, Beijing 102300, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7566-9559","authenticated-orcid":false,"given":"Hai-Mu","family":"Ye","sequence":"additional","affiliation":[{"name":"Department of Materials Science and Engineering, College of New Energy and Materials, China University of Petroleum, Beijing 102249, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,10,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"6303","DOI":"10.1016\/j.polymer.2010.10.039","article-title":"Effect of self-complementary motifs on phase compatibility and material properties in blends of supramolecular polymers","volume":"51","author":"Shokrollahi","year":"2010","journal-title":"Polymer"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"8070","DOI":"10.1021\/acs.macromol.5b01448","article-title":"Isotope Effect on the Melt\u2013Isothermal Crystallization of Polyoxymethylene D\/H Random Copolymers and D\/H Blend Samples","volume":"48","author":"Kummara","year":"2015","journal-title":"Macromolecules"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"1016","DOI":"10.1016\/0032-3861(88)90009-2","article-title":"Blends of two poly(aryl ether ketones)","volume":"29","author":"Sham","year":"1988","journal-title":"Polymer"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"8426","DOI":"10.1021\/ma034702v","article-title":"Cocrystallization Behavior of Poly(3-alkylthiophenes):\u2009 Influence of Alkyl Chain Length and Head to Tail Regioregularity","volume":"36","author":"Pal","year":"2003","journal-title":"Macromolecules"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"3770","DOI":"10.1021\/ma049858p","article-title":"Cocrystallization and Phase Segregation in Crystalline\/Crystalline Polymer Blends of Bacterial Copolyesters","volume":"37","author":"Yoshie","year":"2004","journal-title":"Macromolecules"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"59","DOI":"10.1002\/masy.200550606","article-title":"Cocrystallization and Phase Segregation in Blends of Two Bacterial Polyesters","volume":"224","author":"Yoshie","year":"2005","journal-title":"Macromol. 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