高等学校化学学报

高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (10): 1603.

• 论文 • 上一篇    下一篇

有机酸对非离子型表面活性剂浊点的影响

沈明, 郭荣, 刘正铭, 刘天晴   

  1. 扬州大学师范学院化学系, 扬州, 225002
  • 收稿日期:1995-10-13 出版日期:1996-10-24 发布日期:1996-10-24
  • 通讯作者: 郭荣
  • 作者简介:沈明,男,34岁,讲师
  • 基金资助:

    国家教育委员会优秀青年教师基金

The Effect of Organic acids on the Cloud Points of Triton X-100

SHEN Ming, GUO Rong, LIU Zheng-Ming, LIU Tian-Qing   

  1. Department of Chemistry, Teacher's College, Yangzhou University, Yangzhou, 225002
  • Received:1995-10-13 Online:1996-10-24 Published:1996-10-24

PDF (PC)

被引次数

19

摘要： 有机酸对非离子表面活性剂TritonX-100浊点的影响与酸的亲水性能、空间效应及其在胶束中的增溶位置有关。直链一元酸的加入均使浊点下降,且酸的碳链越长影响越大。直链二元酸对TritonX-100浊点下降的影响小于直链一元酸,且碳原子数nc<6时,使得浊点略有升高;nc≥6时,使得浊点下降。由于空间位阻作用,支链酸和取代酸使TritonX-100浊点降低幅度较小。

关键词: 浊点, TritonX-100, 有机酸, 直链一元酸, 直链二元酸

Abstract: The effect of organic acids on the cloud points of Triton X-100 was related to the hydrophilicity and space structure of organic acids and solubilization position in the micell.The addition of straight chain monoacids made the cloud point of Triton X-100 system decrease.The longer the chain length of straight chain monoacids is,the stronger the effect on the cloud points is.The effect of the straight chain diacids on the decreasing of the Triton X-100 cloud points is weaker than that of the straight chain monoacid.And it made the cloud points of Triton X-100 system increase if the carbon number of acid nc<6,and decrease if nc≥6.The addition of acids with branch chain and acids substitute made the cloud points of Triton X-100 system decrease within a lesser range,because of their steric hindrance effect.

Key words: Cloud point, Triton X-100, Organic acid, Straight chain monoacid, Straight chain diacid

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