微波辅助加热下聚呋喃-2,5-二羧酸酯（PEF）的闭环化学回收

IF 9.2 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Green Chemistry Pub Date : 2025-04-24 DOI:10.1039/d5gc01583a

Sean Najmi , Dylan Huang , Andrew Duncan , Daniel Slanac , Keith Hutchenson , James Hughes , Raja Poladi , Dionisios G. Vlachos

{"title":"微波辅助加热下聚呋喃-2,5-二羧酸酯（PEF）的闭环化学回收","authors":"Sean Najmi , Dylan Huang , Andrew Duncan , Daniel Slanac , Keith Hutchenson , James Hughes , Raja Poladi , Dionisios G. Vlachos","doi":"10.1039/d5gc01583a","DOIUrl":null,"url":null,"abstract":"<div><div>Polyethylene furan-2,5-dicarboxylate (PEF) is a high-performance, bio-based analog to traditional petroleum-derived polyethylene terephthalate (PET). While the chemical recycling of PET has been well studied, PEF recycling studies are limited. This work investigated PEF depolymerization <em>via</em> heterogeneously catalyzed glycolysis using microwave-assisted heating. Various PEF polymers were characterized to understand how the molecular weight, crystallinity, and polymerization catalysts affect the depolymerization. The effects of the reaction temperature and PEF particle size were also studied. The glycolysis of PEF occurred at lower temperatures with faster overall kinetics compared with PET. Recovery of the PEF monomer, bis(2-hydroxyethyl) furan-2,5-dicarboxylate (BHEF), <em>via</em> crystallization was the slowest step in the overall recycling process. The recovered BHEF was repolymerized into virgin-like higher-performance PEF compared with the original material, demonstrating polymer circularity and a potential for upcycling.</div></div>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":"27 20","pages":"Pages 5753-5763"},"PeriodicalIF":9.2000,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Closed-loop chemical recycling of polyethylene furan-2,5-dicarboxylate (PEF) under microwave-assisted heating†\",\"authors\":\"Sean Najmi , Dylan Huang , Andrew Duncan , Daniel Slanac , Keith Hutchenson , James Hughes , Raja Poladi , Dionisios G. Vlachos\",\"doi\":\"10.1039/d5gc01583a\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Polyethylene furan-2,5-dicarboxylate (PEF) is a high-performance, bio-based analog to traditional petroleum-derived polyethylene terephthalate (PET). While the chemical recycling of PET has been well studied, PEF recycling studies are limited. This work investigated PEF depolymerization <em>via</em> heterogeneously catalyzed glycolysis using microwave-assisted heating. Various PEF polymers were characterized to understand how the molecular weight, crystallinity, and polymerization catalysts affect the depolymerization. The effects of the reaction temperature and PEF particle size were also studied. The glycolysis of PEF occurred at lower temperatures with faster overall kinetics compared with PET. Recovery of the PEF monomer, bis(2-hydroxyethyl) furan-2,5-dicarboxylate (BHEF), <em>via</em> crystallization was the slowest step in the overall recycling process. The recovered BHEF was repolymerized into virgin-like higher-performance PEF compared with the original material, demonstrating polymer circularity and a potential for upcycling.</div></div>\",\"PeriodicalId\":78,\"journal\":{\"name\":\"Green Chemistry\",\"volume\":\"27 20\",\"pages\":\"Pages 5753-5763\"},\"PeriodicalIF\":9.2000,\"publicationDate\":\"2025-04-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Green Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/org/science/article/pii/S1463926225003346\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Green Chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/org/science/article/pii/S1463926225003346","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

摘要

聚呋喃-2,5-二羧酸酯（PEF）是一种高性能的生物基类似于传统石油衍生的聚对苯二甲酸乙二醇酯（PET）。虽然PET的化学回收已经得到了很好的研究，但PEF的回收研究是有限的。本文研究了微波辅助加热多相催化糖酵解聚PEF。对各种聚乙二醇聚合物进行了表征，以了解分子量、结晶度和聚合催化剂对解聚的影响。研究了反应温度和PEF粒度对反应性能的影响。与PET相比，PEF的糖酵解温度更低，总体动力学更快。通过结晶法回收PEF单体（2-羟乙基）呋喃-2,5-二羧酸酯（BHEF）是整个回收过程中最慢的步骤。与原始材料相比，回收的BHEF被重新聚合成类似于原始材料的高性能PEF，证明了聚合物的循环性和升级回收的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Closed-loop chemical recycling of polyethylene furan-2,5-dicarboxylate (PEF) under microwave-assisted heating†

Polyethylene furan-2,5-dicarboxylate (PEF) is a high-performance, bio-based analog to traditional petroleum-derived polyethylene terephthalate (PET). While the chemical recycling of PET has been well studied, PEF recycling studies are limited. This work investigated PEF depolymerization via heterogeneously catalyzed glycolysis using microwave-assisted heating. Various PEF polymers were characterized to understand how the molecular weight, crystallinity, and polymerization catalysts affect the depolymerization. The effects of the reaction temperature and PEF particle size were also studied. The glycolysis of PEF occurred at lower temperatures with faster overall kinetics compared with PET. Recovery of the PEF monomer, bis(2-hydroxyethyl) furan-2,5-dicarboxylate (BHEF), via crystallization was the slowest step in the overall recycling process. The recovered BHEF was repolymerized into virgin-like higher-performance PEF compared with the original material, demonstrating polymer circularity and a potential for upcycling.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Green Chemistry 化学-化学综合

CiteScore

16.10

自引率

7.10%

发文量

677

审稿时长

1.4 months

期刊介绍： Green Chemistry is a journal that provides a unique forum for the publication of innovative research on the development of alternative green and sustainable technologies. The scope of Green Chemistry is based on the definition proposed by Anastas and Warner (Green Chemistry: Theory and Practice, P T Anastas and J C Warner, Oxford University Press, Oxford, 1998), which defines green chemistry as the utilisation of a set of principles that reduces or eliminates the use or generation of hazardous substances in the design, manufacture and application of chemical products. Green Chemistry aims to reduce the environmental impact of the chemical enterprise by developing a technology base that is inherently non-toxic to living things and the environment. The journal welcomes submissions on all aspects of research relating to this endeavor and publishes original and significant cutting-edge research that is likely to be of wide general appeal. For a work to be published, it must present a significant advance in green chemistry, including a comparison with existing methods and a demonstration of advantages over those methods.