Chengkai Li, Wuchao Zhao, Jianghua He* and Yuetao Zhang*,
{"title":"通过路易斯对聚合诱导的自组装超快速、一锅式合成纳米纤维","authors":"Chengkai Li, Wuchao Zhao, Jianghua He* and Yuetao Zhang*, ","doi":"10.1021/acs.macromol.4c0076810.1021/acs.macromol.4c00768","DOIUrl":null,"url":null,"abstract":"<p >Owing to their wide application potentials resulting from high aspect ratio, morphologically pure nanofibers attract intense attention but remain challenging to synthesize due to their narrow synthetic experimental window. Here, we employed strong nucleophilic <i>N</i>-heterocyclic olefin (NHO) as a Lewis base (LB) and a bulky organoaluminum compound as a Lewis acid (LA) to construct a Lewis pair (LP), which can rapidly prepare a series of diblock copolymers (di-BCPs), poly(trifluoroethyl methacrylate)-<i>b</i>-poly(heptadecafluorodecyl methacrylate) (PTFEMA-<i>b</i>-PHDFDMA), through the sequential monomer addition method. The liquid-crystalline characteristics of PHDFDMA, in combination with Lewis pair polymerization-induced self-assembly (LP-PISA) strategy, enable ultrafast, one-pot synthesis of di-BCPs with fiber morphologies (dimeters = 11.7–25.1 nm) across a wide experimental window and solid contents (up to 20% w/w). These di-BCPs are structurally characterized by <sup>1</sup>H nuclear magnetic resonance spectroscopy, differential scanning calorimetry, and small-angle X-ray scattering and morphologically analyzed by transmission electron microscopy. This LP-PISA strategy provides the possibility of achieving the desired morphology with well-defined structure and purity through precise control over the evolution parameters.</p>","PeriodicalId":51,"journal":{"name":"Macromolecules","volume":"57 15","pages":"7013–7019 7013–7019"},"PeriodicalIF":5.2000,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Ultra-Fast, One-Pot Synthesis of Nanofibers by Lewis Pair Polymerization-Induced Self-Assembly\",\"authors\":\"Chengkai Li, Wuchao Zhao, Jianghua He* and Yuetao Zhang*, \",\"doi\":\"10.1021/acs.macromol.4c0076810.1021/acs.macromol.4c00768\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Owing to their wide application potentials resulting from high aspect ratio, morphologically pure nanofibers attract intense attention but remain challenging to synthesize due to their narrow synthetic experimental window. Here, we employed strong nucleophilic <i>N</i>-heterocyclic olefin (NHO) as a Lewis base (LB) and a bulky organoaluminum compound as a Lewis acid (LA) to construct a Lewis pair (LP), which can rapidly prepare a series of diblock copolymers (di-BCPs), poly(trifluoroethyl methacrylate)-<i>b</i>-poly(heptadecafluorodecyl methacrylate) (PTFEMA-<i>b</i>-PHDFDMA), through the sequential monomer addition method. The liquid-crystalline characteristics of PHDFDMA, in combination with Lewis pair polymerization-induced self-assembly (LP-PISA) strategy, enable ultrafast, one-pot synthesis of di-BCPs with fiber morphologies (dimeters = 11.7–25.1 nm) across a wide experimental window and solid contents (up to 20% w/w). These di-BCPs are structurally characterized by <sup>1</sup>H nuclear magnetic resonance spectroscopy, differential scanning calorimetry, and small-angle X-ray scattering and morphologically analyzed by transmission electron microscopy. This LP-PISA strategy provides the possibility of achieving the desired morphology with well-defined structure and purity through precise control over the evolution parameters.</p>\",\"PeriodicalId\":51,\"journal\":{\"name\":\"Macromolecules\",\"volume\":\"57 15\",\"pages\":\"7013–7019 7013–7019\"},\"PeriodicalIF\":5.2000,\"publicationDate\":\"2024-07-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Macromolecules\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://pubs.acs.org/doi/10.1021/acs.macromol.4c00768\",\"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://pubs.acs.org/doi/10.1021/acs.macromol.4c00768","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
Ultra-Fast, One-Pot Synthesis of Nanofibers by Lewis Pair Polymerization-Induced Self-Assembly
Owing to their wide application potentials resulting from high aspect ratio, morphologically pure nanofibers attract intense attention but remain challenging to synthesize due to their narrow synthetic experimental window. Here, we employed strong nucleophilic N-heterocyclic olefin (NHO) as a Lewis base (LB) and a bulky organoaluminum compound as a Lewis acid (LA) to construct a Lewis pair (LP), which can rapidly prepare a series of diblock copolymers (di-BCPs), poly(trifluoroethyl methacrylate)-b-poly(heptadecafluorodecyl methacrylate) (PTFEMA-b-PHDFDMA), through the sequential monomer addition method. The liquid-crystalline characteristics of PHDFDMA, in combination with Lewis pair polymerization-induced self-assembly (LP-PISA) strategy, enable ultrafast, one-pot synthesis of di-BCPs with fiber morphologies (dimeters = 11.7–25.1 nm) across a wide experimental window and solid contents (up to 20% w/w). These di-BCPs are structurally characterized by 1H nuclear magnetic resonance spectroscopy, differential scanning calorimetry, and small-angle X-ray scattering and morphologically analyzed by transmission electron microscopy. This LP-PISA strategy provides the possibility of achieving the desired morphology with well-defined structure and purity through precise control over the evolution parameters.
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.
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