Limonene-Based Epoxy: Anhydride Thermoset Reaction Study.

Limonene-Based Epoxy: Anhydride Thermoset Reaction Study.
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DOI:
10.3390/molecules23112739
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发表时间:
2018-10-23
期刊:
Molecules (Basel, Switzerland)
影响因子:
--
通讯作者:
Caillol S
Caillol S
中科院分区:
其他
文献类型:
--
作者:
Couture G;Granado L;Fanget F;Boutevin B;Caillol S

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在可持续发展的背景下,利用可再生资源开发环氧热固性树脂至关重要。本文以柠檬烯为原料合成了一种不含环氧氯丙烷的新型生物基环氧单体,并对其进行了表征。事实上,本文描述了双柠檬烯氧化物(bi-LO)的合成。然而,内环氧环通常表现出较差的反应性,并允许与酸酐反应。因此,我们使用了一个与六氢-4-甲基邻苯二甲酸酐的反应模型来比较端基和环氧基之间的反应性。我们还研究了甲基对环氧官能团的影响。此外,还研究了环氧酸酐化学计量比和引发剂用量对反应的影响。这些研究使我们能够提出一种优化的双氧水配方。最后得到了双LO基热固性树脂,并对其进行了表征。
The development of epoxy thermosets from renewable resources is of paramount importance in a sustainable development context. In this paper, a novel bio-based epoxy monomer derived from limonene was synthesized without epichlorohydrine and characterized. In fact, this paper depicts the synthesis of bis-limonene oxide (bis-LO). However, intern epoxy rings generally exhibit a poor reactivity and allow reaction with anhydride. Therefore, we used a reaction model with hexahydro-4-methylphthalic anhydride to compare reactivity of terminal and interepoxy functions. We also studied the influence of methyl group on intern epoxy functions. Furthermore, the influence of epoxy:anhydride stoichiometry and initiator amount was studied. These studies allow to propose an optimized formulation of bis-LO. Finally, a bis-LO-based thermoset was obtained and characterized.
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