{"title":"通过与硫基离子聚合物原位构建分层配位复合物来增韧橡胶","authors":"Senmao Yu, Zhenghai Tang, Dong Wang, Baochun Guo, Liqun Zhang","doi":"10.1021/acs.macromol.4c01907","DOIUrl":null,"url":null,"abstract":"Programming energy-dissipating units into polymers is an effective method to improve the toughness; however, the state-of-art approaches usually involve complicated chemistry manipulation and multistep process. In this contribution, we report a brand-new way to toughen styrene–butadiene rubber (SBR) by incorporating a sulfur-based ionomer to construct hierarchical coordination complexes. Specifically, the ionomer P(TA-S)/Fe containing polysulfide backbones and iron–carboxylate complexes was synthesized through the copolymerization of thioctic acid and sulfur, followed by introducing ferric chloride. Due to the reaction between polysulfide fragments in P(TA-S)/Fe and SBR, the incorporation of P(TA-S)/Fe enabled the chemical cross-linking of SBR and grafting of iron–carboxylate complexes onto SBR chains. The grafted iron–carboxylate complexes aggregated and formed a phase separate structure within SBR, which provided a multilevel energy-dissipating mechanism and consequently led to an integration of enhanced ultimate strength, modulus, and fracture toughness of SBR.","PeriodicalId":51,"journal":{"name":"Macromolecules","volume":null,"pages":null},"PeriodicalIF":5.1000,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Toughening Rubber by In Situ Construction of Hierarchical Coordination Complexes with a Sulfur-Based Ionomer\",\"authors\":\"Senmao Yu, Zhenghai Tang, Dong Wang, Baochun Guo, Liqun Zhang\",\"doi\":\"10.1021/acs.macromol.4c01907\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Programming energy-dissipating units into polymers is an effective method to improve the toughness; however, the state-of-art approaches usually involve complicated chemistry manipulation and multistep process. In this contribution, we report a brand-new way to toughen styrene–butadiene rubber (SBR) by incorporating a sulfur-based ionomer to construct hierarchical coordination complexes. Specifically, the ionomer P(TA-S)/Fe containing polysulfide backbones and iron–carboxylate complexes was synthesized through the copolymerization of thioctic acid and sulfur, followed by introducing ferric chloride. Due to the reaction between polysulfide fragments in P(TA-S)/Fe and SBR, the incorporation of P(TA-S)/Fe enabled the chemical cross-linking of SBR and grafting of iron–carboxylate complexes onto SBR chains. The grafted iron–carboxylate complexes aggregated and formed a phase separate structure within SBR, which provided a multilevel energy-dissipating mechanism and consequently led to an integration of enhanced ultimate strength, modulus, and fracture toughness of SBR.\",\"PeriodicalId\":51,\"journal\":{\"name\":\"Macromolecules\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.1000,\"publicationDate\":\"2024-10-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Macromolecules\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1021/acs.macromol.4c01907\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"POLYMER SCIENCE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Macromolecules","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1021/acs.macromol.4c01907","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
Toughening Rubber by In Situ Construction of Hierarchical Coordination Complexes with a Sulfur-Based Ionomer
Programming energy-dissipating units into polymers is an effective method to improve the toughness; however, the state-of-art approaches usually involve complicated chemistry manipulation and multistep process. In this contribution, we report a brand-new way to toughen styrene–butadiene rubber (SBR) by incorporating a sulfur-based ionomer to construct hierarchical coordination complexes. Specifically, the ionomer P(TA-S)/Fe containing polysulfide backbones and iron–carboxylate complexes was synthesized through the copolymerization of thioctic acid and sulfur, followed by introducing ferric chloride. Due to the reaction between polysulfide fragments in P(TA-S)/Fe and SBR, the incorporation of P(TA-S)/Fe enabled the chemical cross-linking of SBR and grafting of iron–carboxylate complexes onto SBR chains. The grafted iron–carboxylate complexes aggregated and formed a phase separate structure within SBR, which provided a multilevel energy-dissipating mechanism and consequently led to an integration of enhanced ultimate strength, modulus, and fracture toughness of SBR.
期刊介绍:
Macromolecules publishes original, fundamental, and impactful research on all aspects of polymer science. Topics of interest include synthesis (e.g., controlled polymerizations, polymerization catalysis, post polymerization modification, new monomer structures and polymer architectures, and polymerization mechanisms/kinetics analysis); phase behavior, thermodynamics, dynamic, and ordering/disordering phenomena (e.g., self-assembly, gelation, crystallization, solution/melt/solid-state characteristics); structure and properties (e.g., mechanical and rheological properties, surface/interfacial characteristics, electronic and transport properties); new state of the art characterization (e.g., spectroscopy, scattering, microscopy, rheology), simulation (e.g., Monte Carlo, molecular dynamics, multi-scale/coarse-grained modeling), and theoretical methods. Renewable/sustainable polymers, polymer networks, responsive polymers, electro-, magneto- and opto-active macromolecules, inorganic polymers, charge-transporting polymers (ion-containing, semiconducting, and conducting), nanostructured polymers, and polymer composites are also of interest. Typical papers published in Macromolecules showcase important and innovative concepts, experimental methods/observations, and theoretical/computational approaches that demonstrate a fundamental advance in the understanding of polymers.