{"title":"生物基，高效：用于增强聚丙烯抗热老化和光氧化老化性能的卡丹醇-哌啶衍生物","authors":"Xuemei Zeng, Jianxiang Feng, Yulin He, Siyu Cao, Cheng Zhou, Kangqi Li, Jinjing Tan, Shuyi Chen, Yong Xia, Yuejun Liu, Pu Shi, Jin Zhu","doi":"10.1002/vnl.22113","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <p>Bio-based antioxidants have garnered attention for their sustainability and environmental benefits. In this study, we designed and synthesized three cardanol-piperidine derivatives (HSs) by utilizing hydrogenated cardanol (HC) and piperidine derivatives to improve the aging inhibition of polypropylene (PP). These bio-based antioxidants were intended as eco-friendly alternatives to conventional synthetic antioxidants. The impact of these HSs on the thermal stability, thermo-oxidative stability, and light stability of PP was thoroughly evaluated. The results unveiled that after 5 h of interaction with 2,2-diphenyl-1-picrylhydrazyl free radical, HSs exhibited a remarkable over 5-fold increase in free radical scavenging efficiency as compared to HC. Moreover, the addition of HSs significantly increased the oxidation induction time and the initial oxidation temperature compared to pristine PP. After photo-oxidative aging and thermo-oxidative aging, the HS-dosed PP demonstrated remarkable retention of elongation at break, reaching more than 72% and 69%. From the comparison with physical mixtures and the density functional theory calculations, an intramolecular synergism mechanism is proposed. The intramolecular synergism between hydrogenated cardanol and piperidine derivatives may be the main reason for the inhibition of PP aging.</p>\n </section>\n \n <section>\n \n <h3> Highlights</h3>\n \n <div>\n <ul>\n \n <li>A method for constructing simultaneous efficient light, thermal, and oxygen stable polypropylene.</li>\n \n <li>The mechanism for achieving simultaneous stabilization of light, heat, and oxygen is the intramolecular synergy of phenol piperidine.</li>\n \n <li>The essence of intramolecular synergy of cardanol and piperidine derivatives is its' reduced hydrogen bond dissociation energy and energy gap.</li>\n </ul>\n </div>\n </section>\n </div>","PeriodicalId":17662,"journal":{"name":"Journal of Vinyl & Additive Technology","volume":null,"pages":null},"PeriodicalIF":3.8000,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Bio-based and effective: Cardanol-piperidine derivatives for enhanced polypropylene resistance against thermo- and photo-oxidative aging\",\"authors\":\"Xuemei Zeng, Jianxiang Feng, Yulin He, Siyu Cao, Cheng Zhou, Kangqi Li, Jinjing Tan, Shuyi Chen, Yong Xia, Yuejun Liu, Pu Shi, Jin Zhu\",\"doi\":\"10.1002/vnl.22113\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <p>Bio-based antioxidants have garnered attention for their sustainability and environmental benefits. In this study, we designed and synthesized three cardanol-piperidine derivatives (HSs) by utilizing hydrogenated cardanol (HC) and piperidine derivatives to improve the aging inhibition of polypropylene (PP). These bio-based antioxidants were intended as eco-friendly alternatives to conventional synthetic antioxidants. The impact of these HSs on the thermal stability, thermo-oxidative stability, and light stability of PP was thoroughly evaluated. The results unveiled that after 5 h of interaction with 2,2-diphenyl-1-picrylhydrazyl free radical, HSs exhibited a remarkable over 5-fold increase in free radical scavenging efficiency as compared to HC. Moreover, the addition of HSs significantly increased the oxidation induction time and the initial oxidation temperature compared to pristine PP. After photo-oxidative aging and thermo-oxidative aging, the HS-dosed PP demonstrated remarkable retention of elongation at break, reaching more than 72% and 69%. From the comparison with physical mixtures and the density functional theory calculations, an intramolecular synergism mechanism is proposed. The intramolecular synergism between hydrogenated cardanol and piperidine derivatives may be the main reason for the inhibition of PP aging.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Highlights</h3>\\n \\n <div>\\n <ul>\\n \\n <li>A method for constructing simultaneous efficient light, thermal, and oxygen stable polypropylene.</li>\\n \\n <li>The mechanism for achieving simultaneous stabilization of light, heat, and oxygen is the intramolecular synergy of phenol piperidine.</li>\\n \\n <li>The essence of intramolecular synergy of cardanol and piperidine derivatives is its' reduced hydrogen bond dissociation energy and energy gap.</li>\\n </ul>\\n </div>\\n </section>\\n </div>\",\"PeriodicalId\":17662,\"journal\":{\"name\":\"Journal of Vinyl & Additive Technology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.8000,\"publicationDate\":\"2024-05-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Vinyl & Additive Technology\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/vnl.22113\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Vinyl & Additive Technology","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/vnl.22113","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
Bio-based and effective: Cardanol-piperidine derivatives for enhanced polypropylene resistance against thermo- and photo-oxidative aging
Bio-based antioxidants have garnered attention for their sustainability and environmental benefits. In this study, we designed and synthesized three cardanol-piperidine derivatives (HSs) by utilizing hydrogenated cardanol (HC) and piperidine derivatives to improve the aging inhibition of polypropylene (PP). These bio-based antioxidants were intended as eco-friendly alternatives to conventional synthetic antioxidants. The impact of these HSs on the thermal stability, thermo-oxidative stability, and light stability of PP was thoroughly evaluated. The results unveiled that after 5 h of interaction with 2,2-diphenyl-1-picrylhydrazyl free radical, HSs exhibited a remarkable over 5-fold increase in free radical scavenging efficiency as compared to HC. Moreover, the addition of HSs significantly increased the oxidation induction time and the initial oxidation temperature compared to pristine PP. After photo-oxidative aging and thermo-oxidative aging, the HS-dosed PP demonstrated remarkable retention of elongation at break, reaching more than 72% and 69%. From the comparison with physical mixtures and the density functional theory calculations, an intramolecular synergism mechanism is proposed. The intramolecular synergism between hydrogenated cardanol and piperidine derivatives may be the main reason for the inhibition of PP aging.
Highlights
A method for constructing simultaneous efficient light, thermal, and oxygen stable polypropylene.
The mechanism for achieving simultaneous stabilization of light, heat, and oxygen is the intramolecular synergy of phenol piperidine.
The essence of intramolecular synergy of cardanol and piperidine derivatives is its' reduced hydrogen bond dissociation energy and energy gap.
期刊介绍：
Journal of Vinyl and Additive Technology is a peer-reviewed technical publication for new work in the fields of polymer modifiers and additives, vinyl polymers and selected review papers. Over half of all papers in JVAT are based on technology of additives and modifiers for all classes of polymers: thermoset polymers and both condensation and addition thermoplastics. Papers on vinyl technology include PVC additives.
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