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首页> 外文期刊>ACS Sustainable Chemistry & Engineering >Synthesis of Polyionic Liquid by Phenolic Condensation and Its Application in Esterification
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Synthesis of Polyionic Liquid by Phenolic Condensation and Its Application in Esterification

机译：酚类缩合的合成聚偶液及其在酯化中的应用

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摘要

A novel polyionic liquid for esterification was synthesized by phenolic condensation. Different characterization techniques were applied, and the result showed that the catalyst had high acidity amount (4.5 mmol/g) and good thermal stability. The decomposition temperature of the polyionic liquid catalyst (PIL-S) was 240 degrees C, which was fitted to the product of ester. Owing to these good properties, the PIL-S exhibited excellent catalytic activity in esterification. The optimized condition was the 6 wt % catalyst amount, and the ratio of acetic acid to n-butanol was 0.8:1 at 95 degrees C for 3 h. In the optimized condition, the yield of ester was 97.1%. The PIL-S also has a good catalytic effect in other esterification systems. Compared with commercial resins (Amberlyst 15) and other catalysts, PIL-S showed better catalytic activity. After eight times use, the yield of ester did not decrease obviously (over 94%). The structure of PIL-S remained stable after eight times use.
机译：通过酚类缩合合成用于酯化的新型聚偶液液体。 应用了不同的表征技术，结果表明，催化剂具有高酸度量（4.5mmol / g）和良好的热稳定性。 聚偶型液体催化剂（Pil-S）的分解温度为240℃，其适合于酯的产物。 由于这些良好的性质，Pil-S在酯化中表现出优异的催化活性。 优化的条件为6wt％催化剂量，乙酸与正丁醇的比例为0.8：1，在95℃下为3小时。 在优化的条件下，酯的产率为97.1％。 在其他酯化系统中，Pil-S还具有良好的催化作用。 与商业树脂（Amberlyst5）和其他催化剂相比，Pil-S显示出更好的催化活性。 八次使用后，酯的产量明显不降低（超过94％）。 八次使用后，Pil-S的结构保持稳定。

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