Abstract Fatty acid-based alkyd resins prepared with different amounts of glycerol and pentaerythritol were characterized. Sacha inchi oil and linseed oil (comparative purposes) were used as fatty acids’ sources. FT-IR and 1H NMR spectroscopy were done for alkyd structural verification. Alkyd resins were evaluated through physico-chemical (colour, density, viscosity) and thermal characterization. Film coating performance (drying, hardness, chemical resistance) was also studied. The oxidative crosslinking time tendency was corroborated by the quartz crystal microbalance (QCM) technique. Alkyd resins obtained with fatty acids from sacha inchi and linseed oils had similar properties. Results indicated that lighter resins can be obtained from sacha inchi oil, whereas pentaerythritol increases viscosity and thermal stability, and retards drying time of fatty-acid based alkyd resins.

中文翻译：

---

Plukenetia volubilis L. 脂肪酸基醇酸树脂的表征

摘要 对以不同量的甘油和季戊四醇制备的脂肪酸基醇酸树脂进行了表征。印加果油和亚麻籽油（比较用途）被用作脂肪酸的来源。FT-IR 和 1H NMR 光谱用于醇酸结构验证。醇酸树脂通过物理化学（颜色、密度、粘度）和热特性进行评估。还研究了薄膜包衣性能（干燥、硬度、耐化学性）。氧化交联时间趋势由石英晶体微量天平 (QCM) 技术证实。用来自印加果和亚麻籽油的脂肪酸获得的醇酸树脂具有相似的特性。结果表明，从印加果油中可以获得更轻的树脂，而季戊四醇会增加粘度和热稳定性，