Structural changes of poly(butadiene)-poly(ethyleneoxide) diblock-copolymer micelles induced by a cationic surfactant: Scattering and cryogenic transmission electron microscopy studies

Nordskog A, Egger H, Findenegg GH, Hellweg T, Schlaad H, von Berlepsch H, Bottcher C (2003)
Physical Review E 68(1).

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Abstract
Micelles of the diblock copolymer poly(butadiene)-poly(ethyleneoxide) (B-40-b-EO62) and mixed micelles of this polymer with the cationic surfactant dodecyltrimethylammonium bromide (C(12)TAB) were investigated using static and dynamic light scattering and small-angle neutron scattering. It is shown that the surfactant induces a major structural change from large mainly rodlike aggregates to smaller spherical mixed micelles. The rodlike assemblies found in the absence of surfactant have a contour length L of ca. 500 nm and a diameter d approximate to30 nm. The spherical mixed micelles obtained upon addition of C(12)TAB possess a hydrodynamic radius of 15 nm and still contain several polymer molecules. The results of the scattering experiments are consistent with observations of the aggregates by cryogenic transmission electron microscopy.
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Nordskog A, Egger H, Findenegg GH, et al. Structural changes of poly(butadiene)-poly(ethyleneoxide) diblock-copolymer micelles induced by a cationic surfactant: Scattering and cryogenic transmission electron microscopy studies. Physical Review E. 2003;68(1).
Nordskog, A., Egger, H., Findenegg, G. H., Hellweg, T., Schlaad, H., von Berlepsch, H., & Bottcher, C. (2003). Structural changes of poly(butadiene)-poly(ethyleneoxide) diblock-copolymer micelles induced by a cationic surfactant: Scattering and cryogenic transmission electron microscopy studies. Physical Review E, 68(1).
Nordskog, A., Egger, H., Findenegg, G. H., Hellweg, T., Schlaad, H., von Berlepsch, H., and Bottcher, C. (2003). Structural changes of poly(butadiene)-poly(ethyleneoxide) diblock-copolymer micelles induced by a cationic surfactant: Scattering and cryogenic transmission electron microscopy studies. Physical Review E 68.
Nordskog, A., et al., 2003. Structural changes of poly(butadiene)-poly(ethyleneoxide) diblock-copolymer micelles induced by a cationic surfactant: Scattering and cryogenic transmission electron microscopy studies. Physical Review E, 68(1).
A. Nordskog, et al., “Structural changes of poly(butadiene)-poly(ethyleneoxide) diblock-copolymer micelles induced by a cationic surfactant: Scattering and cryogenic transmission electron microscopy studies”, Physical Review E, vol. 68, 2003.
Nordskog, A., Egger, H., Findenegg, G.H., Hellweg, T., Schlaad, H., von Berlepsch, H., Bottcher, C.: Structural changes of poly(butadiene)-poly(ethyleneoxide) diblock-copolymer micelles induced by a cationic surfactant: Scattering and cryogenic transmission electron microscopy studies. Physical Review E. 68, (2003).
Nordskog, A, Egger, H, Findenegg, GH, Hellweg, Thomas, Schlaad, H, von Berlepsch, H, and Bottcher, C. “Structural changes of poly(butadiene)-poly(ethyleneoxide) diblock-copolymer micelles induced by a cationic surfactant: Scattering and cryogenic transmission electron microscopy studies”. Physical Review E 68.1 (2003).
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Characterization of polybutadiene-poly(ethyleneoxide) aggregates in aqueous solution: a light-scattering and small-angle neutron-scattering study.
Fuetterer T, Nordskog A, Hellweg T, Findenegg GH, Foerster S, Dewhurst CD., Phys Rev E Stat Nonlin Soft Matter Phys 70(4 Pt 1), 2004
PMID: 15600409

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