{"title":"A novel bio-based anhydride curing agent for the synthesis of high-performance epoxy resin","authors":"","doi":"10.1016/j.polymdegradstab.2024.110979","DOIUrl":null,"url":null,"abstract":"<div><p>The continuous consumption of fossil resources and the resulting environmental pollution problems make the synthesis of polymers from renewable resources more and more attractive. Herein, a bio-based epoxy curing agent, 3,6-epoxide hexahydrophthalic anhydride (EHPA), was synthesized successfully from renewable furan and maleic anhydride by combining Diels-Alder and hydrogenation reactions and can cure diglycidyl ether of bisphenol A (DGEBA) to produce a sustainable thermosetting resin (EEP). Tensile properties and dynamic mechanical analysis show that EEP is a high-strength, high-toughness, and high-modulus material, showing higher glass transition temperature (201 °C), tensile strength (104.51 MPa), and storage modulus (4.14 GPa) than those of epoxy thermosets (MEP) cured with the petroleum-based methyl tetrahydrophthalic anhydride (MeTHPA). Besides its high performance, EEP can be degraded via the cleavage of its ester bonds at mild conditions (150 °C, 5 wt.% NaOH aqueous solution), making it an environmentally friendly alternative to petroleum-based epoxy resins. Our results provide a way to synthesize bio-based curing agents to fabricate high-performance and degradable epoxy resin polymers that are expected to be applied in the aerospace fields.</p></div>","PeriodicalId":406,"journal":{"name":"Polymer Degradation and Stability","volume":null,"pages":null},"PeriodicalIF":6.3000,"publicationDate":"2024-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Polymer Degradation and Stability","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0141391024003239","RegionNum":2,"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
The continuous consumption of fossil resources and the resulting environmental pollution problems make the synthesis of polymers from renewable resources more and more attractive. Herein, a bio-based epoxy curing agent, 3,6-epoxide hexahydrophthalic anhydride (EHPA), was synthesized successfully from renewable furan and maleic anhydride by combining Diels-Alder and hydrogenation reactions and can cure diglycidyl ether of bisphenol A (DGEBA) to produce a sustainable thermosetting resin (EEP). Tensile properties and dynamic mechanical analysis show that EEP is a high-strength, high-toughness, and high-modulus material, showing higher glass transition temperature (201 °C), tensile strength (104.51 MPa), and storage modulus (4.14 GPa) than those of epoxy thermosets (MEP) cured with the petroleum-based methyl tetrahydrophthalic anhydride (MeTHPA). Besides its high performance, EEP can be degraded via the cleavage of its ester bonds at mild conditions (150 °C, 5 wt.% NaOH aqueous solution), making it an environmentally friendly alternative to petroleum-based epoxy resins. Our results provide a way to synthesize bio-based curing agents to fabricate high-performance and degradable epoxy resin polymers that are expected to be applied in the aerospace fields.
期刊介绍：
Polymer Degradation and Stability deals with the degradation reactions and their control which are a major preoccupation of practitioners of the many and diverse aspects of modern polymer technology.
Deteriorative reactions occur during processing, when polymers are subjected to heat, oxygen and mechanical stress, and during the useful life of the materials when oxygen and sunlight are the most important degradative agencies. In more specialised applications, degradation may be induced by high energy radiation, ozone, atmospheric pollutants, mechanical stress, biological action, hydrolysis and many other influences. The mechanisms of these reactions and stabilisation processes must be understood if the technology and application of polymers are to continue to advance. The reporting of investigations of this kind is therefore a major function of this journal.
However there are also new developments in polymer technology in which degradation processes find positive applications. For example, photodegradable plastics are now available, the recycling of polymeric products will become increasingly important, degradation and combustion studies are involved in the definition of the fire hazards which are associated with polymeric materials and the microelectronics industry is vitally dependent upon polymer degradation in the manufacture of its circuitry. Polymer properties may also be improved by processes like curing and grafting, the chemistry of which can be closely related to that which causes physical deterioration in other circumstances.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
