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日用化学工业（中英文）

日用化学工业 ›› 2014, Vol. 44 ›› Issue (1): 23-25.doi: 10.13218/j.cnki.csdc.2014.01.006

• 开发与应用 • 上一篇    下一篇

椰油酰胺丙基甜菜碱的合成与表征

吴海龙, 黄建帮, 罗啸秋   

  1. 广州天赐高新材料股份有限公司,广东 广州 510760
  • 收稿日期:2013-07-16 发布日期:2019-04-09
  • 作者简介:吴海龙(1983-),男,江苏人,学士,电话:13824499384,E-mail:wuhailong@tinci.com。

Synthesis and characterization of cocamidopropyl betaine

WU Hai-long, HUANG Jian-bang, LUO Xiao-qiu   

  1. Guangzhou Tinci Materials Technology Co.,Ltd.,Guangzhou,Guangdong 510760,China
  • Received:2013-07-16 Published:2019-04-09

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摘要： 以椰油酸甲酯、N,N-二甲基-1,3-丙二胺、氯乙酸和NaOH为原料,KOH为催化剂合成椰油酰胺丙基甜菜碱。考察了N,N-二甲基-1,3-丙二胺与椰油酸甲酯的投料比、催化剂用量、反应温度和反应时间对主反应椰油酰胺丙基二甲胺合成的影响。结果表明,较佳工艺条件为:n(N,N-二甲基-1,3-丙二胺)∶n(椰油酸甲酯)=1.15∶1,w(催化剂)=3.0%,反应温度为210 ℃,反应时间为25 min,此条件下椰油酸甲酯的转化率达到99.70%。采用红外光谱、质谱和高效液相色谱对目标产物结构进行了确认。

关键词: 椰油酰胺丙基甜菜碱, 椰油酸甲酯, N,N-二甲基-1,3-丙二胺, 椰油酰胺丙基二甲胺

Abstract: Cocamidopropyl betaine was synthesized using coconut fatty acid methyl ester,N,N-dimethyl propylene diamine,chloroacetic acid and NaOH as starting materials,and KOH as catalyst.Effect of factors such as molar ratio of N,N-dimethyl propylene diamine to coconut fatty acid methyl ester,dosage of catalyst,reaction temperature and reaction time et al on main reaction (synthesis of cocamidopropyl dimethylamine) was examined.Results showed that optimum conditions were screened out as follows:n(N,N-dimethyl propylene diamine)∶n(coconut fatty acid methyl ester)=1.15∶1;w(catalyst)=3.0%;reaction temperature 210 ℃;reaction time 25 min.Yield of the coconut fatty acid methyl ester achieves 99.70%.The structure of the targeted product was characterized with FTIR,MS and HPLC.

Key words: cocamidopropyl betaine, coconut fatty acid methyl ester, N,N-dimethyl propylene diamine, cocamidopropyl dimethylamine

中图分类号: 

  • TQ423.3