使用季戊四醇改性三氯化铝催化剂，对C12-C14的内烯烃的齐聚反应进行研究，对反应过程中的三氯化铝用量，改性剂用量，反应时间，反应温度对齐聚物的收率的影响。确定其最佳的工艺条件，三氯化铝用量2%，改性剂季戊四醇用量0.25%，水浴反应加热温℃度，反应时间4 h，在此条件下，以C12-C14内烯烃为反应主原料合成了聚烯烃合成油，对其物理性质和化学性质进行研究。研究结果显示，采用此质量分数的C12-C14的内烯烃，可以合成100℃黏度为7.15 mm2·s-1。粘度指数为133和凝点-39℃的聚烯烃合成油，其收率为78%,具有黏度低，凝点低和黏度指数高的特点，是高质量的润滑油基础油。。%Oligomerization of C12-C14 internal olefins by using pentaerythritol-modified aluminum chloride catalyst was studied. Effects of aluminum trichloride amount,modifier amount, reaction time,reaction temperature on the yield of poly-internal-olefins (PIO) synthetic lubricant were investigated. The best reaction conditions was determined as follows:mass fraction of the aluminum chloride catalyst 2%, the amount of modifier pentaerythritol 0.25%, reaction temperature 85 ℃,reaction time 4h. Under above conditions,poly-olefins lubricant was synthesized from mixture of C12-C14 internal olefins. The viscosity of synthesized product was 7.15 mm2·s-1 at 100 ℃. The yield of poly-olefins lubricant with viscosity index 133 and solidifying point-39℃was 78%.
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