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首页> 外文期刊>European Polymer Journal >From biomass resources to functional materials: A fluorescent thermosetting material based on resveratrol via thiol-ene click chemistry
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From biomass resources to functional materials: A fluorescent thermosetting material based on resveratrol via thiol-ene click chemistry

机译：从生物质资源到功能材料：基于白藜芦醇的荧光热固性材料通过硫醇-NE点击化学

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摘要

Exploring sustainable biobased thiol-ene crosslinked networks with inherent fluorescence, high comprehensive properties as well as low-toxicity will significantly expand their applications in display, anti-counterfeiting, and biomedical materials, etc. In this work, resveratrol allyl ether (RAE), a novel multifunctional allyl compound, was prepared from sustainable feedstocks, and a series of thermosetting materials were designed by tuning the functionality of thiol compounds (from two to four) via UV-light induced thiol-ene click reaction. The curing behavior, thermal and thermomechanical performance, mechanical properties, and biotoxicity of these thiol-ene crosslinked networks were investigated, respectively. Results showed that RAE-4SH exhibited the highest T-g and mechanical properties. Specifically, the T-g of RAE-4SH was up to 71.2 degrees C; meanwhile, the tensile strength and modulus were as high as 49.5 MPa and 1.2 GPa, respectively. Interestingly, it also performed exceptional strong blue-fluorescence under the excitation of UV-light due to the inherent conjugated structure. Moreover, the MTT and cell experiment confirmed low-toxicity of RAE-4SH. Finally, several complex patterns including "BUCT", a flower, and a two-dimension code can be easily prepared with the help of the photo mask. To summarize, RAE provides a new strategy to explore the biomass resources to prepare high-performance functional materials, which may greatly enlarge its application in the future.
机译：探索可持续的生物化硫醇-NEE交联网络具有固有的荧光，高综合性能以及低毒性将显着扩展其在展示，防伪和生物医学材料中的应用等。在这项工作中，白藜芦醇烯丙基醚（RAE），一种新型多官能烯丙基化合物由可持续原料制备，通过通过UV-光诱导硫醇-NE咔哒反应调节硫醇化合物（从两到四）的官能团来设计一系列热固性材料。研究了这些硫醇-NEE交联网络的固化行为，热和热机械性能，机械性能和生物毒性。结果表明，RAE-4SH表现出最高的T-G和机械性能。具体地，RAE-4SH的T-G高达71.2℃;同时，拉伸强度和模量分别高达49.5MPa和1.2GPa。有趣的是，由于固有的共轭结构，它在紫外线的激发下也表现出出色的强烈蓝色荧光。此外，MTT和细胞实验证实了RAE-4SH的低毒性。最后，在照片掩模的帮助下，可以容易地制备包括“靶”，花朵和两维码的多个复杂的图案。为了总结，Rae提供了一种新的策略来探索生物量资源，以准备高性能功能材料，这可能会在未来极大地扩大其应用。

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