Examination of the pseudophase model of monomer-micelle interconversion in cetylpyridinium chloride.
The 35Cl- NMR chemical shift and line width and the 1H chemical shifts of cetylpyridinium chloride, CPyCl, change abruptly at the critical micelle concentration, indicating conversion of monomeric surfactant into micelles within a very small range of concentration. The simple pseudophase treatment fits these results up to 0.05 M CPyCl, but there then appears to be a modest change in micellar structure. Premicelles of single chain surfactants, detected kinetically or photochemically, are probably formed by interactions between reactant(s) and surfactant.
Yunes
Santiago J
SJ
Department of Chemistry and Biochemistry, University of California at Santa Barbara, CA 93016-9510, USA.
Gillitt
Nicholas D
ND
Bunton
Clifford A
CA