ABSTRACT Adsorption of 1-decanesulfonic acid at the electrode-NaClO4 solution interface was determined by double-layer differential capacity measurements. At potentials less than -1,200 mV, the adsorption of the anionic surfactant on the electrode does not occur. Low concentrations of the anionic surfactant (below cmc) causes slight changes in the zero charge potential, Ez, and the surface tens...

In this paper, we derive the time-fractional Cahn-Hilliard equation from continuum mixture theory with a modification of Fick's law diffusion. This model describes process phase separation nonlocal memory effects. We analyze existence, uniqueness, and regularity weak solutions equation. regard, consider degenerating mobility functions free energies Landau, Flory--Huggins double-obstacle type. a...

We derive an expression for the free energy of the blends of block copolymers expressed as a functional of the density distribution of the monomer of each block. The expression is a generalization of the Flory-Huggins-de Gennes theory for homo polymer blends, and also a generalization of the Ohta-Kawasaki theory for the melts of diblock copolymers. The expression can be used for any blends of h...

In this study, thermodynamic properties, namely retention volume, infinitely dilute weight fraction activity coefficient, Flory–Huggins interaction parameter, solubility parameter of the polymer, partition coefficient and diffusion coefficients of the various solvents in poly(methyl methacrylate co butyl methacrylate) (PMMA co BMA) at infinite dilution of the solvent have been determined by inv...

This article studies equilibrium singular configurations of gels and addresses open questions concerning gel energetics. We model a as an incompressible, immiscible saturated mixture solid polymer solvent that sustain chemical interactions at the molecular level. assume energy consists elastic its network plus Flory-Huggins mixing. The latter involves entropic energies individual components int...

We report on the assembly of gold nanoparticle (AuNPs) superlattices at liquid/vapor interface and in bulk their suspensions. Interparticle distances assemblies are achieved multiple length scales by varying chain lengths surface grafted AuNPs polyethylene glycol (PEG) with molecular weights range 2000–40,000 Da. Crystal structures lattice constants both 2D 3D determined synchrotron-based surfa...

Effects of light intensity gradient on development of intricate hierarchical morphology of semicrystalline polyethylene oxide (PEO) and photoreactive diacrylate (DA) blends undergoing photopolymerization-induced crystallization have been demonstrated experimentally and theoretically. The melting temperature of PEO was found to decline upon addition of DA monomer. A solid-liquid phase diagram ha...