Degradation versus self-assembly of block copolymer micelles [PDF]
Langmuir, 2012, 28 (6), pp 3071-3076, 2012 The stability of micelles self-assembled from block copolymers can be altered by the degradation of the blocks. Slow degradation shifts the equilibrium size distribution of block copolymer micelles and change their properties. Quasi-equilibrium scaling theory shows that the degradation of hydrophobic blocks in the core of micelles destabilize the ...
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Constitutive modeling of dilute wormlike micelle solutions: shear-induced structure and transient dynamics [PDF]
JNNFM 295, 104606 (2021), 2021 We present a reformulation of the 'reactive rod model' (RRM) of Dutta and Graham [Dutta, Sarit and Graham, Michael D., JNNFM 251 (2018)], a constitutive model for describing the behavior of dilute wormlike micelle solutions. The RRM treats wormlike micelle solutions as dilute suspensions of rigid Brownian rods undergoing reversible scission and growth ...
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Structure formation in binary mixtures of surfactants: vesicle opening-up to bicelles and octopus-like micelles [PDF]
Soft Matter 8, 8926-8935 (2012), 2012 Micelle formation in binary mixtures of surfactants is studied using a coarse-grained molecular simulation. When a vesicle composed of lipid and detergent types of molecules is ruptured, a disk-shaped micelle, the bicelle, is typically formed. It is found that cup-shaped vesicles and bicelles connected with worm-like micelles are also formed depending ...
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Aerosol-OT surfactant forms stable reverse micelles in aploar solvent in the absence of water [PDF]
Journal of Physical Chemistry B, 2019, 2018 Normal micelle aggregates of amphiphilic surfactant in aqueous solvent are formed by a process of entropically driven self-assembly. The self-assembly of reverse micelles from amphiphilic surfactant in non-polar solvent in the presence of water is considered to be an enthalpically driven process.
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Micellization of Sliding Polymer Surfactants [PDF]
Macromolecules, 2006, 39(2); 871-876, 2005 Following up a recent paper on grafted sliding polymer layers (Macromolecules 2005, 38, 1434-1441), we investigated the influence of the sliding degree of freedom on the self-assembly of sliding polymeric surfactants that can be obtained by complexation of polymers with cyclodextrins. In contrast to the micelles of quenched block copolymer surfactants,
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Micelle fragmentation and wetting in confined flow [PDF]
, 2014 We use coarse-grained molecular-dynamics (MD) simulations to investigate the structural and dynamical properties of micelles under non-equilibrium Poiseuille flow in a nano-confined geometry. The effects of flow, confinement, and the wetting properties of die-channel walls on spherical sodium dodecyl sulfate (SDS) micelles are explored when the micelle
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Micelle formation in block copolymer/homopolymer blends: comparison of self-consistent field theory with experiment and scaling theory [PDF]
Macromolecules, 2009, 42 (15), pp 5873-5880, 2009 We present a self-consistent field theory (SCFT) study of spherical micelle formation in a blend of poly(styrene-butadiene) diblocks and homopolystyrene. The micelle core radii, corona thicknesses and critical micelle concentrations are calculated as functions of the polymer molecular weights and the composition of the diblocks.
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Analytical modeling of micelle growth. 3. Electrostatic free energy of ionic wormlike micelles -- effects of activity coefficients and spatially confined electric double layers [PDF]
Journal of Colloid and Interface Science 2020, 2020 Hypotheses: To correctly predict the aggregation number and size of wormlike micelles from ionic surfactants, the molecular-thermodynamic theory has to calculate the free energy per molecule in the micelle with accuracy better than 0.01 kT, which is a serious challenge.
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Thermodynamics of micellization of oppositely charged polymers [PDF]
, 2003 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.
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Analytical modeling of micelle growth. 1. Chain-conformation free energy of binary mixed spherical, wormlike and lamellar micelles [PDF]
Journal of Colloid and Interface Science 2019, 2019 Hypotheses: A quantitative molecular-thermodynamic theory of the growth of giant wormlike micelles of nonionic surfactants can be developed on the basis of a generalized model, which includes the classical 'phase separation' and 'mass action' models as special cases.
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