Preparation and evaluation of sulphonamide nonionic surfactants

Abstract

these compounds have good surface and biological activities as well as reasonable biodegradability properties.

Utility of Octadecyl Amine in the Synthesis of Various Nitrogen Heterocycles: A Preliminary Investigation on Their Surface and Biological Activities

“…Surfactant molecules containing heterocyclic moieties are an important class of the surface active agents bearing heterocyclic moiety because of their interesting properties such as conflict between the affinity of hydrophobic and hydrophilic structure and because of the heterocyclic moiety confirmed with the aid of hydrophilic moiety (propylene oxide) that gives the biological activity. Propoxylation of some of the new compounds (4,6,8,10,(12)(13)(14)(15)(16)(17)(18) at any active hydrogen with 5 mol of propylene oxide produced nonionic surfactants (19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29). The reaction conditions are shown in Table 1.…”

“…The maximum reduction in surface tension caused by the dissolution of amphiphilic molecules has been indicated by π CMC , and as a result π CMC becomes a measure for the effectiveness of the amphiphile to lower the surface tension of the water [34]. The synthesized surfactants in the present work (19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29) have greater ability to reduce surface tension of the aqueous system. Logically, effectiveness of the prepared surfactants decreases as γ CMC increases (Table 3).…”

“…Because of their widespread important use in medicine, agriculture, and industry, they became attractive heterocyclic systems [22]. Nonionic surface active agents is one of the most important groups of surfactant with growing industrial interest [23].…”