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日用化学工业 ›› 2015, Vol. 45 ›› Issue (8): 434-438.doi: 10.13218/j.cnki.csdc.2015.08.004

• 开发与应用 • 上一篇    下一篇

二烯丙基甲基烷基溴化铵的合成及性能研究

陶贤平1, 张跃军2, 夏胜利1   

  1. 1.南通职业大学 化学与生物工程学院,江苏 南通 226007;
    2.南京理工大学 化工学院,江苏 南京 210094
  • 收稿日期:2015-05-05 修回日期:2015-06-28 出版日期:2015-08-22 发布日期:2019-04-10
  • 作者简介:陶贤平(1960-),男,浙江嵊洲人,副教授,电话:15716295707,E-mail:taoxianping@163.com。
  • 基金资助:
    南通市精细化工科技服务平台重点资助项目(DE2010006)

Synthesis and properties of diallylmethylalkylammonium bromide

TAO Xian-ping1, ZHANG Yue-jun2, XIA Sheng-li1   

  1. 1.College of Chemical and Biological Engineering,Nantong Professional Institute,Nantong,Jiangsu 226007,China;
    2.School of Chemical Engineering,Nanjing University of Science and Technology,Nanjing,Jiangsu 210094,China
  • Received:2015-05-05 Revised:2015-06-28 Online:2015-08-22 Published:2019-04-10

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摘要： 以二烯丙基甲胺(DAM)和不同碳链的1-溴代烷为主要原料,合成了4种二烯丙基甲基烷基(n=4,6,8,10)溴化铵(分别标记为C4,C6,C8和C10),用IR,1HNMR和元素分析对产物结构进行了表征,并通过测定其表面活性、水溶性和絮凝性能,考察产物结构对其性能的影响。结果表明:C4~C10较佳的合成工艺条件为以丙酮为溶剂,DAM与1-溴代烷的摩尔比为1∶1.1,反应时间为64~72 h,反应温度为50~60 ℃,所得产物的收率分别为86.16%,78.02%,75.46%和68.10%。结构表征表明合成的产物为目标产物。性能测定表明随烷基链长度的增加,二烯丙基甲基烷基溴化铵的临界胶束浓度和相应的表面张力依次减小,分别为3.2×10-2,2.1×10-2,1.7×10-2和9.0×10-3 mol/L以及40.3,38.5,34.3和33.1 mN/m;水溶性好,Krafft点均小于0 ℃;对高岭土和硅藻土絮凝能力的强弱次序为C10>C8>C6>C4。

关键词: 季铵盐, 二烯丙基甲基烷基溴化铵, 合成, 性能

Abstract: Four kinds of diallylmethylalkyl (n=4,6,8,10) quaternary ammonium salt (refers to as C4,C6,C8 and C10) were synthesized by using diallylmethylamine (DAM) and 1-bromo alkane with separate chain length as raw materials.The chemical structure of the products was characterized by IR,1HNMR and elemental analysis.Meanwhile,their surface activity,water solubility and flocculation property were examined.Results showed that the recommended better process conditions are:acetone as the solvent;molar ratio of DAM to 1-bromo alkane,1∶1.1;reaction time,64~72 h at 50~60 ℃.The product yields achieve 86.16%,78.02%,75.46% and 68.10% respectively.With the increase of the alkyl chain length,their critical micelle concentration decreases as 3.2×10-2,2.1×10-2,1.7×10-2 and 9.0×10-3 mol/L respectively;as well as their corresponding surface tension decreases as 40.3,38.5,34.3 and 33.1 mN/m respectively.All of them show good water solubility,and their Krafft points are all less than 0 ℃.Their flocculation capacity to kaolin and diatomite are in the order of C10>C8>C6>C4.

Key words: quaternary ammonium salt, diallylmethylalkylammonium bromide, synthesis, properties

中图分类号: 

  • TQ423.12