Chem. J. Chinese Universities ›› 2014, Vol. 35 ›› Issue (6): 1330.doi: 10.7503/cjcu20140113

• Polymer Chemistry • Previous Articles     Next Articles

Surface and Interfacial Properties of Polyoxyethylene Ether-type Surfactants

HUANG Hailong1,2, LI Hongyu1,2, ZHANG Lei1,2, REN Tianrui1,2,*()   

  1. 1. Key Laboratory of Resources Chemistry, Ministry of Education, College of Life and Environmental Sciences
    2. Plant Resources Development Centre, Shanghai Normal University, Shanghai 200234, China
  • Received:2014-02-18 Online:2014-06-10 Published:2014-04-29
  • Contact: REN Tianrui E-mail:trren@shnu.edu.cn
  • Supported by:
    † Supported by the National High Technology Research and Development Program of China(No.2011AA1005003) and the National Natural Science Foundation of China(No.21172147)

Abstract:

A series of poly nonylphenol polyoxyethylene ether nonionic surfactants with different polymerization degerees was synthesized with nonyl phenol and formaldehyde. The structures were characterized by infrared spectroscopy and nuclear magnetic resonance. Moreover, the surface properties were evaluated using the surface tension method. It is found that critical micelle concentration(cmc) of monomer, dimer and trimer incease with increasing of the number of hydrophilic group epoxyethane(EO) of the surfactants. In the case of the same number of EO, the cmc of surfactants were significantly reduce with the increase of the degree of polymerization. Although dimer and trimer show good surface properties, the surface property of trimer is more excellent than dimer. Moreover, dimer and trimer show more excellent adsorption and dispersion performance because the arrangments of them on the air/water boundary are significantly more compacted than dimer.

Key words: Polyoxyethylene ether surfactant, Critical micelle concentration, Surface tension

CLC Number: 

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