{"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}
Ilya Faykov, Alexandra Pulyalina, Ekaterina Gruzdeva, Alexander Novikov, Mikhail Goikhman, Irina Podeshvo, Nairi Loretsyan, Iosif Gofman, Ivan Abalov, Natalia Saprykina, Galina Polotskaya
{"title":"Co-Polyamide with 2-Pyridylquinoline Moieties in the Main Chain and Its Metal-Polymer Complex with Cu(II) for Toluene Recovery: Synthesis, Structure, Physicochemical and Transport Properties","authors":"Ilya Faykov, Alexandra Pulyalina, Ekaterina Gruzdeva, Alexander Novikov, Mikhail Goikhman, Irina Podeshvo, Nairi Loretsyan, Iosif Gofman, Ivan Abalov, Natalia Saprykina, Galina Polotskaya","doi":"10.1002/macp.202570010","DOIUrl":"https://doi.org/10.1002/macp.202570010","url":null,"abstract":"<p><b>Front Cover</b>: In article 2400178, Alexandra Pulyalina and and co-workers report on the development of polymer membranes based on new copolyamide and its complex with copper(II), providing selective transport of methanol in separation of organic media. Preferential mass transfer of methanol occurs due to the creation of specific channels by forming multi-hydrogen bonds between methanol and macromolecules. Based on detailed studies of the structure and physicochemical properties, it was shown that the developed membrane materials are suitable for practical use.\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 5","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/macp.202570010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554584","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}
Runpeng Liu, Congde Qiao, Qinze Liu, Jing Xu, Jinshui Yao
{"title":"Fabrication and Properties of Gelatin/Glycyrrhizic Acid Double-Network Hydrogels with High Freeze Resistance","authors":"Runpeng Liu, Congde Qiao, Qinze Liu, Jing Xu, Jinshui Yao","doi":"10.1002/macp.202400421","DOIUrl":"https://doi.org/10.1002/macp.202400421","url":null,"abstract":"<p>A series of double-network hydrogels are fabricated from gelatin and glycyrrhizic acid (GA), and the influence of GA content on the mechanical properties of hydrogels is investigated. It is shown that the hydrogel containing 5% GA possessed the best mechanical performance. Then this hydrogel is soaked in K<sub>3</sub>Cit/ethylene glycol aqueous solutions and the effects of ethylene glycol concentration on the structure and properties of immersed hydrogels are explored. The results indicated that the as-obtained hydrogel demonstrated excellent freezing resistance due to the combination effects of ion hydration and hydrogen bonds. Moreover, the hydrophobic interactions between protein chains increased with an increase in ethylene glycol concentration. The strengthening of these interactions facilitated the formation of a triple helix structure in protein. As a result, the tensile strength and elongation at the break of the hydrogels are simultaneously improved. In addition, the long-term stability of the hydrogels is also enhanced by the introduction of ethylene glycol.</p>","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 8","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840772","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}