Table 2: The abbreviation of the dicarboxylic cationic surfactants.

The number of methyleneThe name of different surfactantsAbbreviation

Cetyltrimethylammonium acetateCTAAC
Cetyltrimethylammonium butyrateCTABU
Cetyltrimethylammonium hexanoateCTAHE
Cetyltrimethylammonium caprylateCTACA