Novel bio-based propylene-derived phthalonitrile compounds: Synthesis, curing behavior and thermal properties

IF 4.5 3区 工程技术 Q1 CHEMISTRY, APPLIED
Zhiyi Guo, Qiufei Chen, Zhicheng Wang, Athar Ali Khan Gorar, Jun Wang, Wenbin Liu
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引用次数: 0

Abstract

Bio-based bisphenol compounds were prepared using eugenol from biomass as the initial raw material. A reaction of nucleophilic substitution takes place with 4-nitrophthalonitrile in an environmentally friendly solvent to produce bio-based propenyl-derived phthalonitrile monomers. The effective preparation of compounds was proven using hydrogen and carbon nuclear magnetic resonance and fourier transform infrared spectroscopy (FT-IR). By employing the process of free radical catalysis, it is possible to directly cure the novel phthalonitrile monomers without the need for a specific small molecule curing agent. The cured resin was reported to have high glass transition temperature, good thermal stability, and processing properties by FT-IR, differential scanning calorimetry, thermogravimetric analyzer, dynamic mechanical analyzer, and rheometer techniques. The flexural test and scanning electron microscopy results show that both resins have a consistent, flawless structure and improved mechanical properties. Eugenol is derived from sustainable biomass, offering an environmentally friendly approach to utilizing biological monophenols effectively. It provides the benefits of carbon reduction and renewability, making it a valuable and eco-conscious resource.

Abstract Image

新型生物基丙烯基邻苯二甲腈化合物:合成、固化行为和热性能
以生物质中的丁香酚为初始原料,制备了生物基双酚化合物。在环保溶剂中与 4-硝基邻苯二甲腈发生亲核取代反应,生成生物基丙烯基邻苯二甲腈单体。氢和碳核磁共振以及傅立叶变换红外光谱(FT-IR)证明了化合物的有效制备。通过采用自由基催化过程,可以直接固化新型邻苯二腈单体,而无需使用特定的小分子固化剂。通过傅立叶变换红外光谱、差示扫描量热仪、热重分析仪、动态机械分析仪和流变仪等技术,固化后的树脂具有较高的玻璃化转变温度、良好的热稳定性和加工性能。挠曲试验和扫描电子显微镜结果表明,这两种树脂具有一致、无暇的结构和更好的机械性能。丁香酚提取自可持续生物质,是有效利用生物单酚的环保方法。它具有减碳和可再生的优点,是一种宝贵的具有生态意识的资源。
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来源期刊
Reactive & Functional Polymers
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.
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