%0 Journal Article
%T Synthesis and Characterization of Some New Cationic Derivatives of Biological Interest
%A Moshera Z. Mohamed
%A Samar A. Abubshait
%A Eqbal J. Bushlaibi
%J Journal of Surface Engineered Materials and Advanced Technology
%P 242-248
%@ 2161-489X
%D 2013
%I Scientific Research Publishing
%R 10.4236/jsemat.2013.33032
%X <p>
	<span><span style=\"font-family:Verdana;\">A homologous series of cationic
surfactants were synthesized and characterized by spectral studies, mass, IR, </span><sup><span style=\"font-family:Verdana;\">1</span></sup><span style=\"font-family:Verdana;\">H
NMR, </span><sup><span style=\"font-family:Verdana;\">13</span></sup><span style=\"font-family:Verdana;\">C NMR, 2D NMR and elemental analysis. The surface activities
of these amphiphiles were measured, including surface tension (</span><i><span style=\"font-family:Verdana;\">¦Ã</span></i><span style=\"font-family:Verdana;\">), critical micelle concentration
(CMC), effectiveness (</span></span><span style=\"font-family:Verdana;\">p</span><sub><span style=\"font-family:Verdana;\">cmc</span></sub><span><span style=\"font-family:Verdana;\">), efficiency (PC</span><sub><span style=\"font-family:Verdana;\">20</span></sub><span style=\"font-family:Verdana;\">), maximum surface
excess (</span><i><span style=\"font-family:Verdana;\">¦£</span></i><sub><span style=\"font-family:Verdana;\">max</span></sub><span style=\"font-family:Verdana;\">) and minimum
surface area (A</span><sub><span style=\"font-family:Verdana;\">min</span></sub><span style=\"font-family:Verdana;\">) at 25¡æ. Adsorption and micellization free
energies of these amphiphiles in their solutions showed a good tendency towards
adsorption at the interfaces. The synthesized amphiphiles showed good antimicrobial
activity.</span></span><span></span> 
</p>
%K Quaternary Ammonium Amphiphiles
%K Micellization
%K Adsorption
%K Surface Properties
%K Biological Activity of Quaternized
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=34492