【摘要】 以油酸甲酯（MO）、油酸丁酯（NBO）为原料，先环氧化，再分别与水杨酸（SA）反应，最后与乙酸酐反应合成了两种生物基增塑剂乙酰油酸甲酯-水杨酸酯（A-MO-SAE）和乙酰油酸丁酯-水杨酸酯（A-NBO-SAE），并与环己烷1,2-二甲酸二异壬基酯（DINCH）进行比较。通过傅里叶变换红外光谱仪和核磁共振谱仪对产物的结构进行表征；通过拉伸测试、耐迁移测试和透明性测试等比较不同增塑剂塑化聚氯乙烯（PVC）的性能差异。结果表明，烷基链较短的AMO-SAE对PVC有更好的增塑效果，在质量损失50%时，A-MO-SAE的分解温度为326℃，比DINCH高23℃，使PVC膜表现出更优异的热稳定性；其塑化的PVC膜拉伸强度为35.2 MPa，断裂伸长率为462.9%，透过率高达92%，且A-MO-SAE具有更好的耐挥发性和耐抽出性。总之，A-MO-SAE是一种综合性能优异的环保增塑剂，可以显著提高PVC各项性能。更多还原

【Abstract】 Two bio-based plasticizers, methyl acetyl oleate-salicylate（A-MO-SAE） and butyl acetyl oleate-salicylate（ANBO-SAE）, were synthesized from methyl oleate and butyl oleate through a three-step process involving epoxidation, reaction with salicylic acid, and acetylation with acetic anhydride. Their performance was compared with a commercial alternative, cyclohexane-1,2-dicarboxylic acid diisononyl ester（DINCH）. The chemical structures of the synthesized plasticizers were confirmed by FTIR and NMR spectroscopy. The properties of plasticized PVC were evaluated through tensile tests and migration resistance measurements. Results demonstrated that A-MO-SAE, with its shorter alkyl chain, exhibited a superior plasticizing effect. The PVC film plasticized with A-MO-SAE showed enhanced thermal stability, with a 50 % weight loss temperature(T_{d-50 %}) of 326 °C, 23 °C higher than that of DINCH. This film also exhibited a tensile strength of 35. 2 MPa, an elongation at break of 462. 9 %, and a light transmittance of 92 %. Furthermore, AMO-SAE demonstrated lower volatility and better resistance to solvent extraction than DINCH. In conclusion, A-MOSAE is a promising eco-friendly plasticizer with excellent comprehensive properties, capable of significantly enhancing the performance of PVC materials.更多还原