Surface-active properties of nitrogen heterocyclic and dialkylamino derivates of hexadecylphosphocholine and cetyltrimethylammonium bromide.
The physico-chemical properties of dialkylamino and nitrogen heterocyclic analogues of hexadecylphosphocholine (HPC) and cetyltrimethylammonium bromide (CTAB) were investigated. The surface properties, such as the critical micelle concentration (cmc), the surface tension value at the cmc (gamma(cmc)), and the surface area at the surface saturation per head group (A(cmc)) were determined by means of surface tension measurements. Micelle size was determined using the dynamic light scattering method. The influence of dialkylamino groups and heterocyclic ring size on surface-active properties was investigated. Surface activity and micellar size of prepared analogues of HPC and CTAB were mutually compared.
Lukác
Milos
M
Department of Chemical Theory of Drugs, Faculty of Pharmacy, Comenius University, Kalinciakova 8, 832 32 Bratislava, Slovakia. lukac@fpharm.uniba.sk
Pisárcik
Martin
M
Lacko
Ivan
I
Devínsky
Ferdinand
F
D000588:Amines; D002593:Cetrimonium Compounds / Q000737:chemistry*; D006571:Heterocyclic Compounds; D008823:Micelles; D009584:Nitrogen / Q000737:chemistry*; D010767:Phosphorylcholine / Q000031:analogs & derivatives* / Q000737:chemistry; D013500:Surface Tension; D013501:Surface-Active Agents / Q000737:chemistry*
D000588:Amines; D002593:Cetrimonium Compounds; D006571:Heterocyclic Compounds; D008823:Micelles; D013501:Surface-Active Agents; D010767:Phosphorylcholine; C039128:miltefosine; D009584:Nitrogen