Hybrid block copolymer micelles with partly hydrophobically modified polyelectrolyte shells in polar and aqueous media: experimental study using fluorescence correlation spectroscopy, time-resolved fluorescence, light scattering, and atomic force microscopy

Article Abstract:

Several experimental techniques were used to study the structure and behavior of amphiphilic block copolymer micelles with partly hydrophobically modified polyelectrolyte shells in 1,4-dioxane-water mixtures and in purely aqueous media. The fluorometric study suggested that the hydrophobic anthracene tag at the end of shell-forming PMA tried to avoid the aqueous medium and was buried in the shell, forcing the PMA chain to loop back toward the core.

All Other Miscellaneous Chemical Product and Preparation Manufacturing, Chemical preparations, not elsewhere classified, Polyelectrolytes, Micelles, Aqueous solution reactions, Copolymers

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Interpolymer complexes based on the core/shell micelles. Interaction of polystyrene-block-poly(methacrylic acid) micelles with linear poly(2-vinylpyridine) in 1,4-dioxane water mixtures and in aqueous media

Article Abstract:

Light scattering and atomic force microscopy are used for studying the size and structural changes of nanoparticles formed after the addition of poly(2-vinylpyridine) (PVP) to block copolymer micelles of polystyrene-block-poly(methacrylic acid) (PS-PMA). Complex structures based on the core/shell micelles have formed in mixed selective solvents due to the strong hydrogen bonding between PVP and PMA segments.

Plastics Material and Resin Manufacturing, Plastics materials and resins, Polystyrene, Styrene Resins, Polystyrene Resins NEC, Analysis, Atomic force microscopy, Light scattering

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Mean-field study of poly(methacrylic acid) shells in partly hydrophobically modified amphiphilic block copolymer micelles in polar solvents

Article Abstract:

The structure of poly(methacrylic acid) (PMA) shells in polystyrene-block-poly(methacrylic acid) (PS-PMA) micelles was examined by self-consistent field (SCF) calculations. It was indicated that hydrophobic tags tried to avoid the polar solvent and force the PMA chains to loop toward the core.

All Other Basic Organic Chemical Manufacturing, Industrial Organic Chemicals, Methacrylic Acid, Hydrophobic effect

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