Composite Materials and Engineering Center, Washington State University, Pullman, WA 99164, USA.
Bioresour Technol. 2010 Apr;101(7):2520-4. doi: 10.1016/j.biortech.2009.11.028. Epub 2009 Dec 5.
Two rosin-based imide-diacids were synthesized and studied as epoxy curing agents. In comparison, a similar imide-diacid based on trimellitic anhydride was also prepared. The chemical structures were confirmed by (1)H NMR and FT-IR. The curing of a commercial epoxy with these imide-containing diacids was studied by differential scanning calorimetry (DSC). Thermal stability, tensile and dynamic mechanical properties of the cured epoxies were investigated. The results indicate that rosin-based imide-diacids used as curing agents resulted in significantly higher glass transition temperature, tensile and dynamic mechanical properties than the imide-diacid derived from trimellitic anhydride. Rosin acids have a great potential to replace some of current petroleum-based compounds in the synthesis of epoxy curing agents.
两种松香基酰亚胺二酸被合成并研究作为环氧树脂固化剂。相比之下，还制备了一种基于均苯四甲酸酐的类似酰亚胺二酸。通过 1H NMR 和 FT-IR 确认了化学结构。通过差示扫描量热法（DSC）研究了这些含酰亚胺二酸的商业环氧树脂的固化。研究了固化环氧树脂的热稳定性、拉伸和动态力学性能。结果表明，用作固化剂的松香基酰亚胺二酸导致玻璃化转变温度、拉伸和动态力学性能显著高于源自均苯四甲酸酐的酰亚胺二酸。松香酸在合成环氧树脂固化剂方面具有取代部分现有石油基化合物的巨大潜力。
