ABSTRACT Techniques in polymer synthesis are taking different dimensions in the last few decades. Reversible-deactivation radical polymerization processes resulted in a wide range of polymeric architectures made from an almost infinite reservoir of functional building blocks. The concept of click chemistry revolutionized the way how polymer chemists approached synthetic routes. Among the few reactions that could qualify as click approach; the copper-catalyzed azide–alkyne cycloaddition reaction is in the front place. Whether click or not, cycloadditions are powerful tools for designing polymeric materials in a modular fashion, with a high level of functionality and, sometimes responsiveness. Thus we have developed an efficient synthetic platform for the preparation of a new class of polyimide-based high-performance thermosets (HPTs) based on the double 1,3-dipolar cycloaddition of munchnone with bis-maleimides. It is worth mentioning that this report is the first to deal with the changes in physico-chemical properties of HPTs obtained by cycloaddition reaction due to gamma irradiation. The polymers synthesized by this unique technique were irradiated with gamma doses in the range 10–300 kGy. The consequential effect of gamma radiation and the structural modifications induced on HPTs have been studied and discussed as a function of dose using different characterization techniques such as Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), differential scanning calorimetry-thermogravimetric analysis (DSC-TGA), Field Emission Scanning Electron Microscopy (FESEM) and UV-Vis Spectroscopy.

中文翻译：

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ϒ- 辐照的影响和研究 ϒ 诱导的高性能热固性塑料中的物理化学变化，通过双环加成得到 munchnone 和双马来酰亚胺

摘要 在过去的几十年里，聚合物合成中的技术呈现出不同的维度。可逆失活自由基聚合过程产生了由几乎无限的功能性构建块库制成的各种聚合物结构。点击化学的概念彻底改变了高分子化学家处理合成路线的方式。在少数可以作为点击方法的反应中；铜催化的叠氮化物-炔烃环加成反应处于领先地位。无论是否点击，环加成都是以模块化方式设计聚合物材料的强大工具，具有高水平的功能，有时还具有响应能力。因此，我们开发了一种高效的合成平台，用于制备基于 munchnone 与双马来酰亚胺的双 1,3-偶极环加成反应的新型聚酰亚胺基高性能热固性材料 (HPT)。值得一提的是，该报告首次处理了通过环加成反应获得的 HPTs 的理化性质因伽马辐射而发生的变化。用这种独特的技术合成的聚合物接受了 10-300 kGy 范围内的伽马剂量辐照。已经使用不同的表征技术，如傅里叶变换红外光谱 (FTIR)、X 射线衍射 (XRD)、差示扫描量热法，研究和讨论了伽马辐射的后续影响和对 HPT 诱导的结构改变作为剂量的函数。热重分析 (DSC-TGA)，