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Bonnar, M P; Wilson, J.I.B.; Burnside, B. M.; Reuben, Robert Lewis; Gengenbach, Thomas R.; Griesser, Hans J.; Beamson, G.

doi:10.1023/a:1004486431177

Cited by 16 publications

(13 citation statements)

References 19 publications

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“…X-ray photoelectron spectroscopy (XPS) was performed on an AXIS HSi spectrometer (Kratos Analytical) with monochromatized AlK␣ radiation at a power of 300 W. 30,31 Although most of the XPS spectra were recorded at a normal photoelectron emission (0°), some of them were measured at emission angles of 30°, 60°, and 75°for higher surface sensitivities. Charge corrections were made with the C 1s component of aliphatic hydrocarbon at 285.0 eV as a reference.…”

Section: Surface Characterizationmentioning

confidence: 99%

Surface immobilization of poly(ethylene oxide): Structure and properties

Gong

Dai

Griesser

et al. 2000

J. Polym. Sci. B Polym. Phys.

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Section: Surface Characterizationmentioning

confidence: 99%

Surface immobilization of poly(ethylene oxide): Structure and properties

Gong

Dai

Griesser

et al. 2000

J. Polym. Sci. B Polym. Phys.

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“…Siloxane surfactants with a PDMS structure find many commercial applications [13][14][15][16][17][18][19][20], such as additives in cosmetics, textile manufacture, wetting and coating agents and agricultural adjuvants, which emanate from a very high surface activity in both aqueous and non-aqueous media [20]. With this in mind, effects of glycerol and ionic charges on the phase behavior of the non-ionic ABA block copolymer (EO) 15 -(PDMS) 15 -(EO) 15 (commercial name IM-22) in water have been studied.…”

Section: Introductionmentioning

confidence: 99%

Glycerol-induced swollen lamellar phases with siloxane copolymers

Zou

Hoffmann

Eastoe

et al. 2007

Journal of Colloid and Interface Science

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“…[1][2][3][4][5][6] Recently, the self-assembly behavior in water of a number of low molecular weight trisiloxaneethoxylate surfactants and higher molecular weight block and graft poly(dimethylsiloxane)-containing copolymers has been reported. [7][8][9][10][11][12] Rake-type siloxane surfactants, such as MD 22 12 -H, and EO ) ethylene oxide), can form at low concentrations (e.g., 5%) in water an unusual diversity of spheroidal and elongated micelles, as well as tubelike, unilamellar and mutilamellar vesicles.…”

Section: Introductionmentioning

confidence: 99%

Small-Angle Neutron Scattering Characterization of Micelles Formed by Poly(dimethylsiloxane)-graft-polyether Copolymers in Mixed Polar Solvents

Lin

Alexandridis

2002

J. Phys. Chem. B

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The self-assembled structure of an amphiphilic poly(dimethylsiloxane)-graft-polyether copolymer has been investigated in binary solvents consisting of water and one of the following polar organic solvents: 2-propanol, ethanol, formamide, or glycerol. Micelle structural parameters were obtained by fitting the core-corona form factor and hard-sphere interaction structure factor to small-angle neutron scattering (SANS) data obtained at contrast conditions where the solvents were fully deuterated and the copolymer was not. The siloxane copolymer forms in water at 20°C micelles that consist of a "dry" core with a radius of about 6 nm and a solvated (about 40% polymer) corona with a thickness of 2 nm; the relatively thin corona may be due to the combtype architecture of the siloxane copolymer. The micelle radii, micelle core radii, micelle association numbers, and polymer volume fractions in the micelle core and corona decreased with increasing cosolvent/water ratio in the mixed solvents containing 2-propanol, ethanol, or formamide. On the contrary, the addition of glycerol led to an increase of the micelle association number. The above findings are discussed in terms of the relative location of the polar organic solvents in the interior or exterior of the siloxane copolymer micelles. In particular, the micelle association numbers observed for different water-cosolvent mixtures can be correlated to the octanol-water partition coefficients of the respective cosolvents. A transition from spherical to ellipsoid micelles was observed upon an increase in the temperature: this is attributed to the desolvation of the polyether chains. This structural transition correlates with the solvent quality in the mixed solvents: ethanol and 2-propanol, which solvate the interior of the micelles, tending to keep the micelles spherical, while increased glycerol content in the mixed solvent leads to the formation of ellipsoids at a fixed temperature.

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Cited by 16 publications

References 19 publications

Surface immobilization of poly(ethylene oxide): Structure and properties

Surface immobilization of poly(ethylene oxide): Structure and properties

Glycerol-induced swollen lamellar phases with siloxane copolymers

Small-Angle Neutron Scattering Characterization of Micelles Formed by Poly(dimethylsiloxane)-graft-polyether Copolymers in Mixed Polar Solvents

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