{"title":"High Refractive Index Aromatic and Ether-Containing Polythioureas: Improving Transparency and Mechanical Properties via Reciprocal Hydrogen Bonds","authors":"Seigo Watanabe, Yoshino Tsunekawa, Kenichi Oyaizu","doi":"10.1002/macp.202570016","DOIUrl":"https://doi.org/10.1002/macp.202570016","url":null,"abstract":"<p><b>Front Cover</b>: In article 2400456, Kenichi Oyaizu and co-workers show that the copolymers consisting of thioureas (red), aromatics (orange), and ethers (blue) display superior mechanical and optical properties than the all-aromatic polythioureas, due to the assistance of the reciprocal hydrogen bonds between thiourea and ether units.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 8","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/macp.202570016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Biradical Initiation in Photoinitiated Copolymerization of Styrene and Maleic Anhydride","authors":"Michael-Phillip Smith, Chané Calitz, Upenyu L. Muza, Albena Lederer, Catharine Esterhuysen, Bert Klumperman","doi":"10.1002/macp.202570014","DOIUrl":"https://doi.org/10.1002/macp.202570014","url":null,"abstract":"<p><b>Front Cover</b>: An artist's impression of the charge transfer complex between styrene and maleic anhydride, irradiated by a beam of light. The charge transfer complex forms biradicals upon irradiation with light, which leads to polymer chains growing in two directions. High molecular weight alternating copolymers of styrene and maleic anhydride are formed as a consequence. More details can be found in article 2400266 by Bert Klumperman and co-workers. The artwork has been created by Michael-Phillip Smith and Nikki Smith.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 7","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/macp.202570014","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"In Memory of Professor Yusuf Yagci","authors":"","doi":"10.1002/macp.202500087","DOIUrl":"https://doi.org/10.1002/macp.202500087","url":null,"abstract":"","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 7","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Vanillin Oxime-Enabled Castor-Oil-Based Waterborne Polyurethane with Tunable Mechanical, Self-Healing, and Fluorescent Properties","authors":"Ruotong Du, Guowen Zhou, Xiaohui Wang","doi":"10.1002/macp.202400493","DOIUrl":"https://doi.org/10.1002/macp.202400493","url":null,"abstract":"<p>It is highly desirable yet challenging to develop sustainable bio-based polyurethane with excellent mechanical properties, self-healing, and reprocessing abilities. In this study, a rigid bio-based diol (VO) containing oxime group is synthesized via the condensation reaction of lignin-derived vanillin and hydroxylamine. Subsequently, VO is introduced into a castor oil-based WPU (CWPU) system to prepare CWPU-VOs with high biobased content. The presence of dynamic oxime-carbamate bonds endowed CWPU-VOs with excellent self-healing (self-healing efficiency>95%, at 80 °C for 1 h,) and reprocessing properties. By adjusting the ratio of VO and castor oil, the mechanical properties of CWPU-VOs (tensile strength of 11.0–24.3 MPa, elongation at break of 642.2–312.0%) can be effectively tuned. In addition, due to the photolysis behavior of oxime-urethane moieties, CWPU-VOs show outstanding fluorescence anti-counterfeiting potential. This work provides a new idea for the development of high-performance waterborne polyurethane with adjustable mechanical properties, self-healing ability, and fluorescent properties.</p>","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 9","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143904914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}