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| 漆脂酰肌氨酸表面活性剂的合成与性能研究 |
| Synthesis and property of lacquer wax acyl sarcosine surfactants |
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| DOI： |
| 中文关键词: 漆脂；漆脂酰肌氨酸；肌氨酸 表面活性剂；脂肪酰氯 |
| 英文关键词:lacquer wax lacquer wax acyl sarcosine sarcosine surfactant fatty acyl chloride |
| 基金项目: |
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| 中文摘要: |
| 以漆脂为原料，经过硫酸催化水解，生成漆脂脂肪酸，再与氯化亚砜反应生成漆脂脂肪酰氯，然后采用肖顿-鲍曼(Schotten-Baumann)缩合法，在弱碱性条件下，漆脂脂肪酰氯与肌氨酸钠盐进行缩合反应，再经过酸化、萃取等过程，制得漆脂酰肌氨酸。采用红外光谱和核磁共振碳氢谱对其结构进行表征，并对产物钠盐的表面性能进行分析。结果表明，合成产物为漆脂酰肌氨酸，漆脂酰肌氨酸钠盐的临界胶束浓度为6.733×10-4mol/L，表面张力为22.845 mN/m，具有较好的表面活性。当漆脂酰肌氨酸钠盐浓度为0.01 mol/L时，从乳化的液体石蜡中分出10 mL水的时间为90 s，对低极性溶剂的乳化效果较差，但漆脂酰肌氨酸钠盐的起泡和稳泡性能较好，起泡高度为130 mm，5 min后降至115 mm。 |
| 英文摘要: |
| Lacquer wax was hydrolysed by sulfuric acid catalysis, and then reacted with sulfoxide chloride to form lacquer wax fatty acyl chloride. The lacquer wax fatty acyl chloride reacted with sodium sarcosine under the weak alkalinity condition by Schotten-Baumann condensation method, and the reaction product was acidified and extracted to obtain the lacquer wax acyl sarcosine. The structure of the lacquer wax acyl sarcosine was confirmed by IR, 1H-NMR and 13C-NMR, and the surface property of the lacquer wax acyl sarcosine sodium was investigated. The results showed that the finished product was lacquer wax acyl sarcosine; the critical micelle concentration (CMC) and surface tension of the lacquer wax acyl sarcosine sodium were 6.733×10-4 mol/L and 22.845 mN/m, respectively, and it had good surface tension. When the concentration was 0.01 mol/L, the time of extracting 10 mL water from atolein was 90 s. For the low polarity solvent, the emulsifying effect was poor. However, the foaming and foam stability properties of the lacquer wax acyl sarcosine sodium were better, the foaming height was 130 mm, and it decreased to 115 mm after 5 min. |
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