Mechanically Robust, Reprocessable, and Light-Controlled Healable Solvent-Free Lignin-Containing Polyurethane Elastomers Based on Dynamic Phenol-Carbamate Network

IF 5.1 1区化学 Q1 POLYMER SCIENCE

Macromolecules Pub Date : 2025-01-09 DOI:10.1021/acs.macromol.4c0225810.1021/acs.macromol.4c02258

Jin Peng, Haixu Wang, Shusheng Chen*, Weifeng Liu* and Xueqing Qiu,

{"title":"Mechanically Robust, Reprocessable, and Light-Controlled Healable Solvent-Free Lignin-Containing Polyurethane Elastomers Based on Dynamic Phenol-Carbamate Network","authors":"Jin Peng, Haixu Wang, Shusheng Chen*, Weifeng Liu* and Xueqing Qiu, ","doi":"10.1021/acs.macromol.4c0225810.1021/acs.macromol.4c02258","DOIUrl":null,"url":null,"abstract":"<p >In this study, we introduce an innovative one-step, solvent-free approach for preparing lignin-containing polyurethane elastomers (LPUes) with nanomicro phase-separated structure and dynamic dual-cross-linking networks comprising both phenol-carbamate bonds (PCBs) and hydrogen bonds. This distinctive structural design imparted exceptional mechanical properties to the LPUes. The sample containing 22.9 wt % phenolized lignin exhibited tensile strength of 44.6 MPa, elongation at break of 714.6%, and toughness of 148.0 MJ/m<sup>3</sup>. The abundance of dynamic PCBs also conferred remarkable reprocessing capabilities, with these LPUes retaining over 98% for tensile strength and 94.4% for toughness after two hot-pressing cycles. Moreover, the incorporation of lignin endowed the LPUes with photothermal properties, facilitating efficient light-controlled self-healing and shape-memory functionalities. This work offers an innovative pathway to harmonize the mechanical properties and thermal adaptability in the development of sustainable and high-performance LPUes, thereby opening their avenues for diverse potential applications.</p>","PeriodicalId":51,"journal":{"name":"Macromolecules","volume":"58 2","pages":"836–854 836–854"},"PeriodicalIF":5.1000,"publicationDate":"2025-01-09","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.4c02258","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}

引用次数: 0

Abstract

In this study, we introduce an innovative one-step, solvent-free approach for preparing lignin-containing polyurethane elastomers (LPUes) with nanomicro phase-separated structure and dynamic dual-cross-linking networks comprising both phenol-carbamate bonds (PCBs) and hydrogen bonds. This distinctive structural design imparted exceptional mechanical properties to the LPUes. The sample containing 22.9 wt % phenolized lignin exhibited tensile strength of 44.6 MPa, elongation at break of 714.6%, and toughness of 148.0 MJ/m³. The abundance of dynamic PCBs also conferred remarkable reprocessing capabilities, with these LPUes retaining over 98% for tensile strength and 94.4% for toughness after two hot-pressing cycles. Moreover, the incorporation of lignin endowed the LPUes with photothermal properties, facilitating efficient light-controlled self-healing and shape-memory functionalities. This work offers an innovative pathway to harmonize the mechanical properties and thermal adaptability in the development of sustainable and high-performance LPUes, thereby opening their avenues for diverse potential applications.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Macromolecules 工程技术-高分子科学

CiteScore

9.30

自引率

16.40%

发文量

942

审稿时长

2 months

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.