On a Biobased Epoxy Vitrimer from a Cardanol Derivative Prepared by a Simple Thiol–Epoxy “Click” Reaction

环氧树脂 腰果酚 单体 材料科学 点击化学 热固性聚合物 高分子化学 有机化学 化学工程 化学 复合材料 聚合物 工程类
作者
Federico Ferretti,Giacomo Damonte,Francesco Cantamessa,Rossella Arrigo,Athanassia Athanassiou,Arkadiusz Żych,Alberto Fina,Orietta Monticelli
出处
期刊:ACS omega [American Chemical Society]
卷期号:9 (1): 1242-1250 被引量:1
标识
DOI:10.1021/acsomega.3c07459
摘要

The development of this work lies in the relevant interest in epoxy resins, which, despite their wide use, do not meet the requirements for sustainable materials. Therefore, the proposed approach considers the need to develop environmentally friendly systems, in terms of both the starting material and the synthetic method applied as well as in terms of end-of-life. The above issues were taken into account by (i) using a monomer from renewable sources, (ii) promoting the formation of dynamic covalent bonds, allowing for material reprocessing, and (iii) evaluating the degradability of the material. Indeed, an epoxy derived from cardanol was used, which, for the first time, was applied in the development of a vitrimer system. The exploitation of a diboronic ester dithiol ([2,2′-(1,4-phenylene)-bis[4-mercaptan-1,3,2-dioxaborolane], DBEDT) as a cross-linker allowed the cross-linking reaction to be carried out without the use of solvents and catalysts through a thiol-epoxy "click" mechanism. The dynamicity of the network was demonstrated by gel fraction experiments and rheological and DMA measurements. In particular, the formation of a vitrimer was highlighted, characterized by low relaxation times (around 4 s at 70 °C) and an activation energy of ca. 48 kJ/mol. Moreover, the developed material, which is easily biodegradable in seawater, was found to show promising flame reaction behavior. Preliminary experiments demonstrated that, unlike an epoxy resin prepared from the same monomer and using a classical cross-linker, our boron-containing material exhibited no dripping under combustion conditions, a phenomenon that will allow this novel biobased system to be widely used.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
1秒前
1秒前
1秒前
你你你发布了新的文献求助10
1秒前
多多完成签到,获得积分10
2秒前
syw发布了新的文献求助10
2秒前
kk发布了新的文献求助10
3秒前
呆萌鱼完成签到,获得积分10
3秒前
紫曦发布了新的文献求助10
3秒前
SASI发布了新的文献求助10
4秒前
科研通AI2S应助rsjames采纳,获得10
5秒前
6秒前
Strike发布了新的文献求助10
6秒前
7秒前
7秒前
宜醉宜游宜睡应助Jiawen采纳,获得10
8秒前
石头完成签到,获得积分10
8秒前
9秒前
背完单词好睡觉完成签到 ,获得积分10
10秒前
隐形的涫发布了新的文献求助10
11秒前
Menand发布了新的文献求助10
11秒前
15秒前
w_应助街道办事部采纳,获得10
15秒前
16秒前
雍飞烟完成签到,获得积分10
16秒前
正直天空完成签到,获得积分20
16秒前
拼搏马里奥完成签到,获得积分10
16秒前
17秒前
17秒前
17秒前
xzzt完成签到 ,获得积分10
18秒前
Jony发布了新的文献求助10
18秒前
怕孤独的思山完成签到,获得积分10
18秒前
18秒前
18秒前
19秒前
SUN发布了新的文献求助20
19秒前
CC完成签到,获得积分10
19秒前
19秒前
20秒前
高分求助中
Sustainability in ’Tides Chemistry 2000
The ACS Guide to Scholarly Communication 2000
Studien zur Ideengeschichte der Gesetzgebung 1000
TM 5-855-1(Fundamentals of protective design for conventional weapons) 1000
Threaded Harmony: A Sustainable Approach to Fashion 810
Pharmacogenomics: Applications to Patient Care, Third Edition 800
Gerard de Lairesse : an artist between stage and studio 500
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3074861
求助须知:如何正确求助?哪些是违规求助? 2728212
关于积分的说明 7502977
捐赠科研通 2376311
什么是DOI,文献DOI怎么找? 1259944
科研通“疑难数据库(出版商)”最低求助积分说明 610771
版权声明 597101