Symmetric di- or tetra-alkyl substituted monodisperse polyoxyethyleneglycols: Synthesis and surface properties

Hubert Wassermann, Elmostafa Azim, Gérard Coudert, Samuel Achilefu, Claude Selve

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


A new series of amphiphilic compounds are presented. The dialkylated monodisperse polyoxyethylene derivatives were prepared by a three-step reaction and global yields >60% were obtained. For the synthesis of the tetraalkylated derivatives, six reaction steps were required and yields >40% were obtained. The evaluation of their surface properties was effected by measuring the variation of the surface tension (γ) of the aqueous solutions as a function of their concentration. The results reveal that they are surface-active agents. They lowered the surface tension of water to the range usually observed for classical hydrogenated non-ionic surfactants. The observed stabilization of γ for a range of concentrations corresponds to the formation of organized phases. The Critical Concentrations obtained are higher than those for analogous linear compounds having the same hydrophilic-lipophilic balance. The areas per polar head group of surfactant molecules are relatively constant for compounds of equivalent hydrophobicity.

Original languageEnglish (US)
Pages (from-to)2043-2047
Number of pages5
JournalJournal of the Chemical Society, Perkin Transactions 2
Issue number11
StatePublished - 1992
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)


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