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Pandect of Ester surfactants (1): Definition

Time:2021-10-16 20:12:04; Reading: 108

Pandect of Ester surfactants (1): Definition

Definition of Ester surfactants:

In the molecule, it has:

(1), One or more -C(=O)O- functional group.

(2), Zero or more -OH, -C(=O)N-, -O- and so on functional group.

(3), No -OSO3-, -SO3-, (C2H4O)n(n>1) and so on functional group.

Different from the strong hydrophilic structure such as -OSO3-, the hydrophilicity of -C(=O)O- structure is weak.

General formula:

According to R, R1, ester surfactants can be subdivided into many types.

Examples are as follows:

(1), Alkanol alkanoate: R, R1: CnH2n+1;

(2), Enoic acid enol ester: R, R1: CnH2n-1;

(3), Glyceryl monoalkanoate: R: CnH2n+1; R1: CH2(OH)CH(OH)CH2-;

(4), Lactide;

(5), Lactone.

Surfactant

gamma-Oryzanol

Diflucortolone valerate

Betamethasone valerate

Megestrol acetate

Betamethasone acetate

Standard

Test methods of surfactants, catalog, Chinese national standards

Surfactants, catalog, Chinese national standards

Test methods of materials, catalog, Chinese national standards

Basic standards of materials, catalog, Chinese national standards

Test methods of textile auxiliaries, catalog, Chinese national standards