Preparation and surface active properties of oxypropylated α-hydroxyacids, α-hydroxyesters and α-, β-alkane diols

N. O. Shaker; A. A. El-Sawy; A. M. F. Eissa

doi:10.3989/gya.1994.v45.i5.1018

Preparation and surface active properties of oxypropylated α-hydroxyacids, α-hydroxyesters and α-, β-alkane diols

Authors

N. O. Shaker Faculty of Science, Al-Azhar University, Girls' branch, Cairo
A. A. El-Sawy Faculty of Science-Zagazig University, Benha
A. M. F. Eissa Faculty of Science, Al-Azhar University, Girls' branch, Cairo. Faculty of Science-Zagazig University, Benha

DOI:

https://doi.org/10.3989/gya.1994.v45.i5.1018

Keywords:

Biodegradation, Nonionic surfactant (preparation), Physicochemical properties

Abstract

A series of a-hydroxyacids RCH(OH)CO₂H, α-hydroxyesters RCH(OH)CO₂CH₃ and α, β-alkane diols was synthetized and condensed with 5-20 moles propylene oxide to obtain nonionic surfactants. Some of the physicochemical properties and the biodegradability of these products were examined. The results showed that the best wetting properties were obtained by the addition of 15 oxypropylene groups to methyl α-hydroxymyristate. The α-hydroxymyristic acid with 20 moles of propylene oxide gave the highest foam. Biodegradation studies indicated that increasing both the chain length of the hydrophobic alkyl chain or the number of oxypropylene groups in the adduct decreased biodegradation.

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Published

1994-10-30

How to Cite

Shaker NO, El-Sawy AA, Eissa AMF. Preparation and surface active properties of oxypropylated α-hydroxyacids, α-hydroxyesters and α-, β-alkane diols. Grasas aceites [Internet]. 1994Oct.30 [cited 2024Apr.25];45(5):309-12. Available from: https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1018

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Issue

Vol. 45 No. 5 (1994)

Section

Research

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