一种以香兰素为基础的可持续邻苯二腈树脂的合成及其特性

IF 3.9 3区化学 Q2 POLYMER SCIENCE

Journal of Polymer Science Pub Date : 2024-09-13 DOI:10.1002/pol.20240187

Matthew Laskoski, Loren C. Brown, Andrew T. Kerr

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引用次数: 0

摘要

利用可再生的生物合成分子香兰素制备了一种新型邻苯二甲腈树脂（PN），其中含有两个邻苯二甲腈基团，香兰素结构无需预先改性。通过差示扫描量热法（DSC）、热重分析法（TGA）、核磁共振光谱法（NMR）、流变仪、傅立叶变换红外光谱法（FTIR）和单晶 X 射线衍射法（XRD）对这种邻苯二腈树脂进行了全面的表征。该单体在加工温度下的流变粘度低于 250 cP，且具有良好的固化寿命。完全固化后，PN 聚合物的热稳定性高于 500°C，玻璃化转变温度 (Tg) 高于 380°C 的最终后固化温度，而且结构完整性保持得非常好。这些结果表明，香兰素衍生的 PN 树脂是在较大温度范围内保持高温和机械稳定性的各种应用的理想候选材料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Synthesis and properties of a sustainable, vanillin‐based phthalonitrile resin

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Synthesis and properties of a sustainable, vanillin‐based phthalonitrile resin

The renewable and biosynthetic molecule, vanillin, was used in the preparation of a new phthalonitrile resin (PN), containing two phthalonitrile groups without pre‐modification of the vanillin structure. This PN resin was characterized thoroughly by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), nuclear magnetic resonance (NMR) spectroscopy, rheometry, Fourier transform infrared spectroscopy (FTIR), and single‐crystal X‐ray diffraction (XRD). The monomer exhibited excellent rheometric viscosities below 250 cP at processing temperatures and a good pot life. After complete curing, the PN polymer exhibited thermal stability above 500°C, a glass transition temperature (Tg) above the final postcure temperature of 380°C, and exceptional retention of structural integrity. These results highlight a vanillin‐derived PN resin is an excellent candidate for a variety of applications where high temperature and mechanical stability over a large temperature range are required.

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来源期刊

Journal of Polymer Science POLYMER SCIENCE-

CiteScore

6.30

自引率

5.90%

发文量

264

期刊介绍： Journal of Polymer Research provides a forum for the prompt publication of articles concerning the fundamental and applied research of polymers. Its great feature lies in the diversity of content which it encompasses, drawing together results from all aspects of polymer science and technology. As polymer research is rapidly growing around the globe, the aim of this journal is to establish itself as a significant information tool not only for the international polymer researchers in academia but also for those working in industry. The scope of the journal covers a wide range of the highly interdisciplinary field of polymer science and technology.