Pentaerythritol fatty acid esters are an excellent lubricant oil additive, due to their good biodegradability, thermal ability, anti‐wear, and friction properties. However, to meet the application requirements, fatty acids with different alkyl chain lengths are reacted with pentaerythritol, resulting in complex ester compositions. To reveal the relation between the functionalities and the composition of esters, it is important to develop a method for their analysis.

中文翻译：

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超高效超临界流体色谱结合四极杆飞行时间质谱用于表征季戊四醇脂肪酸酯

季戊四醇脂肪酸酯是出色的润滑油添加剂，因为它们具有良好的生物降解性，耐热性，抗磨性和摩擦性能。然而，为了满足应用要求，使具有不同烷基链长的脂肪酸与季戊四醇反应，产生复杂的酯组合物。为了揭示酯的官能度与组成之间的关系，开发一种分析酯的方法很重要。