Micellization and solution properties of the aglycon triterpenoids asiatic acid (AA) and madecassic acid (MA) were examined experimentally and in computational simulations. AA and MA belong to the large class of bioactive aglycon triterpenoids, for which limited physicochemical data are available. In this study, solubility, partition coefficient, critical micelle concentrations (CMC), and surfa...

A polypeptide hybrid double hydrophilic diblock copolymer (DHBC), poly( N-isopropylacrylamide)- b-poly( l-glutamic acid) (PNIPAM- b-PLGA), was synthesized via the ring-opening polymerization of gamma-benzyl- l-glutamate N-carboxyanhydride (BLG-NCA) using monoamino-terminated PNIPAM as the macroinitiator, followed by deprotection of benzyl groups under alkaline conditions. Containing a thermores...

– The complexation of oppositely charged colloidal objects is considered in this paper as a thermodynamic micellization process where each kind of object needs the others to micellize. This requirement gives rise to quantitatively different behaviors than the so-called mixed-micellization where each specie can micellize separately. A simple model of the grand potential for micelles is proposed ...

Fluorinated surfactants are an important class of surfactants because they possess properties that are far superior than those of their hydrocarbon analogs. As a result, they find use in a wide variety of applications including in paints, polishes, fire-fighting foams, and emulsion polymerization. However, concerns regarding the non-biodegradability and toxicity of fluorinated surfactants have ...

An amphiphilic platinum(II)-containing diblock copolymer, with pH- and solvent-responsive micellization properties that could induce drastic UV-vis and emission spectral changes via modulation of Pt...Pt and pi-pi stacking interactions, has been demonstrated in both aqueous and organic media.

Abstract Micelles and micellization appeal long lasting interest as promising drug carriers. A conventional parameter providing information about formation of micelles is critical micelle concentration (cmc). Its value roughly separates two states the surfactant solution – namely with without presence micelles. If surfactants in water approaches cmc some physical quantities abruptly change, thi...

As synthesized surface active ionic liquids (SAILs), Tetrapropylammonium Dodecylsulfate (TPADS), and Tetrabutylammonium (TBADS) have been characterized by FTIR, 1H-NMR 13C-NMR spectroscopic techniques. Conductometric UV-Visible probe investigations attempted to study the aggregation behavior of these SAILs in aqueous solution polymers Polyvinylpyrrolidone (PVP) Polyethylene glycol (PEG) at diff...