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85问答库 > 尼泊金甲脂，尼泊金乙酯和尼泊金丙脂谁的极性大

尼泊金甲脂，尼泊金乙酯和尼泊金丙脂谁的极性大

2025-04-07 15:10:59

推荐回答（1个）

回答1：

下午好，MHBA的极性比乙酯、丙酯大，本身尼泊金酯都是基于疏水的对羟基苯甲酸结构，支链烷基从甲基开始极性最大，往后随着分子量增大和解离能增大依次衰减，一般在丁基往上就很难再有极性并完全变成憎水基，请参考（另外纠正一点，它们是「酯」不是「脂」，脂是脂肪烃与对羟基苯甲酸无关）。

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