| 引用本文： |
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杜琨,刘雄民,李伟光,周永红,李飘英.长链不饱和脂肪酸甲酯臭氧化反应速率常数的测定[J].广西科学院学报,2005,(3):141-143. [点击复制]
- Du Kun,Liu Xiongmin,Li Weiguang,Zhou Yonghong,Li Piaoying.Measurement of Reaction Rate Constants in the Reaction of Ozone with Monounsaturated Fatty Acid Methyl Esters[J].Journal of Guangxi Academy of Sciences,2005,(3):141-143. [点击复制]
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| 摘要: |
| 用气相色谱-质谱联用仪(GC-MS)跟踪测定苯乙烯和β-蒎烯与长链不饱和脂肪酸甲酯混合物的臭氧反应过程,根据竞争反应动力学方法计算了二十四碳烯-15-烯酸甲酯(TAE),二十二碳-13-烯酸甲酯(DAE)和十八碳-9-烯酸甲酯(OAE)的速率常数。结果表明,3种长链脂肪酸甲酯的反应速度快于苯乙烯和β-蒎烯,TAE,DAE和OAE以苯乙烯为参比物在乙酸丁酯中的速率常数分别为2.082×107cm3·mol-1·s-1、2.143×107cm3·mol-1·s-1和2.229×107cm3·mol-1·s-1。 |
| 关键词: 不饱和脂肪酸 臭氧化反应 动力学 |
| DOI： |
| 投稿时间：2003-12-30修订日期：2005-03-15 |
| 基金项目:广西自然科学基金(0135013)资助项目;教育部科学技术研究重点项目(204110)。 |
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| Measurement of Reaction Rate Constants in the Reaction of Ozone with Monounsaturated Fatty Acid Methyl Esters |
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Du Kun, Liu Xiongmin, Li Weiguang, Zhou Yonghong, Li Piaoying
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| (Coll. of Chem. and Chemical Engi., Guangxi Univ., Nanning, Guangxi, 530004, China) |
| Abstract: |
| Ozonization process of monounsaturated fatty acid methyl esters with ozone hasbeen measured by GC-MS.The rate constants of ozonization have been calculated by competitive reaction kinetics.The results show that rate constants of 15c-tetracosenoic acid methyl ester(TAE),13c-docosenoic acid methyl ester(DAE) and 9c-octadecenoic acid methyl ester(OAE) are 2.082×107cm3·mol-1·s-1、2.143×107cm3·mol-1·s-1 and 2.229×107cm3·mol-1·s-1 in n-buty acetate solution at (296±2)K,respectively. |
| Key words: monounsaturated fatty acid methyl ester ozonization kinetics |
