|141. Erhardt, R.; Böker, A.; Zettl, H.; Kaya, H.; Pyckhout-Hintzen, W.; Krausch, G.; Abetz, V.; Müller, A.H.E.: Superstructures of Janus micelles, Polym. Mater. Sci. Eng. 84, 102 (2001)|
A novel strategy to synthesize amphiphilic, surface-compartmentalized nanoparticles based on linear ABC triblock copolymers is presented. These so-called Janus micelles consist of a crosslinked core and a corona with a "northern" and a "southern" hemisphere. Selectively crosslinking spherical domains of the polybutadiene middle block in a well-ordered bulk morphol. of a polystyrene-block-polybutadiene-block-poly(Me methacrylate) triblock copolymer (SBM) leads to the conservation of the compartmentalization of the outer blocks after dissoln. of the material. Multi-angle laser light scattering GPC, fluorescence correlation spectroscopy, small-angle neutron scattering, static and dynamic light scattering, as well as scanning force microscopy indicate an equil. between molecularly dissolved Janus micelles (unimers) and aggregates (multimers), so-called supermicelles.