部分生物基半芳烃不饱和聚酯高硬度光交联涂料

IF 4.5 3区工程技术 Q1 CHEMISTRY, APPLIED

Reactive & Functional Polymers Pub Date : 2025-07-23 DOI:10.1016/j.reactfunctpolym.2025.106420

Klara Jastak, Elise Brument, Fabrice Burel, Nicolas Désilles, Laurence Lecamp

{"title":"部分生物基半芳烃不饱和聚酯高硬度光交联涂料","authors":"Klara Jastak, Elise Brument, Fabrice Burel, Nicolas Désilles, Laurence Lecamp","doi":"10.1016/j.reactfunctpolym.2025.106420","DOIUrl":null,"url":null,"abstract":"<div><div>This study presents the photochemical crosslinking of a partially biobased, semi-aromatic unsaturated polyester. Firstly, a polyester was synthesized from the condensation of diethyl 2,6-pyridinedicarboxylate, a biobased monomer derived from bacteria, and <em>cis</em>-2-butene-1,4-diol. Polyesters with molar masses up to 20,700 g/mol were obtained, with glass transition temperatures (T<sub>g</sub>) reaching 51 °C. Secondly, photocrosslinked coatings were prepared by addition of a photosensitive thiol derivative of coumarin: 7-mercapto-4-methyl coumarin (0,1 eq / unsaturation). The resulting system was irradiated with a polychromatic lamp for one hour at 30 °C, allowing a thiol-ene reaction and a concomitant [2 + 2] cycloaddition. The resulting coatings were apolar (23 %), hard (König hardness 222 ± 1 s), well crosslinked (swelling rate of 0.11 ± 0.05) and exhibited a T<sub>g</sub> of 74 °C.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"216 ","pages":"Article 106420"},"PeriodicalIF":4.5000,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"High-hardness photocrosslinked coatings from a partially biobased and semi-aromatic unsaturated polyester\",\"authors\":\"Klara Jastak, Elise Brument, Fabrice Burel, Nicolas Désilles, Laurence Lecamp\",\"doi\":\"10.1016/j.reactfunctpolym.2025.106420\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This study presents the photochemical crosslinking of a partially biobased, semi-aromatic unsaturated polyester. Firstly, a polyester was synthesized from the condensation of diethyl 2,6-pyridinedicarboxylate, a biobased monomer derived from bacteria, and <em>cis</em>-2-butene-1,4-diol. Polyesters with molar masses up to 20,700 g/mol were obtained, with glass transition temperatures (T<sub>g</sub>) reaching 51 °C. Secondly, photocrosslinked coatings were prepared by addition of a photosensitive thiol derivative of coumarin: 7-mercapto-4-methyl coumarin (0,1 eq / unsaturation). The resulting system was irradiated with a polychromatic lamp for one hour at 30 °C, allowing a thiol-ene reaction and a concomitant [2 + 2] cycloaddition. The resulting coatings were apolar (23 %), hard (König hardness 222 ± 1 s), well crosslinked (swelling rate of 0.11 ± 0.05) and exhibited a T<sub>g</sub> of 74 °C.</div></div>\",\"PeriodicalId\":20916,\"journal\":{\"name\":\"Reactive & Functional Polymers\",\"volume\":\"216 \",\"pages\":\"Article 106420\"},\"PeriodicalIF\":4.5000,\"publicationDate\":\"2025-07-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Reactive & Functional Polymers\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S138151482500272X\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Reactive & Functional Polymers","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S138151482500272X","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}

引用次数: 0

摘要

本研究提出了光化学交联的部分生物基，半芳香不饱和聚酯。首先，以细菌为原料的生物基单体2,6-吡啶二羧酸二乙酯与顺-2-丁烯-1,4-二醇缩合合成聚酯；得到了摩尔质量高达20,700 g/mol的聚酯，玻璃化转变温度（Tg）达到51℃。其次，通过添加香豆素的光敏硫醇衍生物：7-巯基-4-甲基香豆素（0,1当量/不饱和）制备光交联涂层。得到的体系在30°C下用多色灯照射1小时，允许进行巯基反应和伴随的[2 + 2]环加成。所得涂层具有极极性（23%）、硬度（König，硬度222±1 s）、交联良好（溶胀率0.11±0.05）、Tg为74℃等特点。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

High-hardness photocrosslinked coatings from a partially biobased and semi-aromatic unsaturated polyester

查看原文本刊更多论文

High-hardness photocrosslinked coatings from a partially biobased and semi-aromatic unsaturated polyester

This study presents the photochemical crosslinking of a partially biobased, semi-aromatic unsaturated polyester. Firstly, a polyester was synthesized from the condensation of diethyl 2,6-pyridinedicarboxylate, a biobased monomer derived from bacteria, and cis-2-butene-1,4-diol. Polyesters with molar masses up to 20,700 g/mol were obtained, with glass transition temperatures (T_g) reaching 51 °C. Secondly, photocrosslinked coatings were prepared by addition of a photosensitive thiol derivative of coumarin: 7-mercapto-4-methyl coumarin (0,1 eq / unsaturation). The resulting system was irradiated with a polychromatic lamp for one hour at 30 °C, allowing a thiol-ene reaction and a concomitant [2 + 2] cycloaddition. The resulting coatings were apolar (23 %), hard (König hardness 222 ± 1 s), well crosslinked (swelling rate of 0.11 ± 0.05) and exhibited a T_g of 74 °C.

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

Reactive & Functional Polymers 工程技术-高分子科学

CiteScore

8.90

自引率

5.90%

发文量

259

审稿时长

27 days

期刊介绍： Reactive & Functional Polymers provides a forum to disseminate original ideas, concepts and developments in the science and technology of polymers with functional groups, which impart specific chemical reactivity or physical, chemical, structural, biological, and pharmacological functionality. The scope covers organic polymers, acting for instance as reagents, catalysts, templates, ion-exchangers, selective sorbents, chelating or antimicrobial agents, drug carriers, sensors, membranes, and hydrogels. This also includes reactive cross-linkable prepolymers and high-performance thermosetting polymers, natural or degradable polymers, conducting polymers, and porous polymers. Original research articles must contain thorough molecular and material characterization data on synthesis of the above polymers in combination with their applications. Applications include but are not limited to catalysis, water or effluent treatment, separations and recovery, electronics and information storage, energy conversion, encapsulation, or adhesion.