Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (7): 1465.

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Synthesis and Surface Properties of Nonylphenol Polyoxyethylene Dimeric and Trimeric Nonionic Surfactants

YANG Fang, LI Gang*, ZHANG Song-Mei, QI Jian, LIU Rong, XU Nian   

  1. School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
  • Received:2009-09-23 Online:2010-07-10 Published:2010-07-10
  • Contact: LI Gang. E-mail: ligang@hebut.edu.cn
  • Supported by:

    河北省自然科学基金(批准号: B2006000019)资助.

Abstract:

To investigate surface properties of oligomeric surfactants, a series of dimeric and trimeric nonionic surfactants of nonylphenol polyoxyethylene ether(DNP and TNP) were synthesized and characterized by 1H NNR, FTIR and elemental analysis. Surface properties of the DNP and TNP were determined by surface tension method and steady-state fluorescence method, respectively. The experimental results show that critical micelle concentration(cmc) increase with the increasing of oxyethylene(EO) units of the DNP and TNP. The cmc of the DNP and TNP are obviously smaller than that of nonionic surfactant of nonylphenol polyoxyethylene ether(NP), which has exhibited predominant surface activities, adsorption affinities and wet abilities of the DNP and TNP.

Key words: Dimeric nonionic surfactant of nonylphenol polyoxyethylene ether; Trimeric nonionic surfactant of nonylphenol polyoxyethylene ether; Fluorescence probe; Critical micelle concentration(cmc)

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