Micellization behavior of poly(η-butyl methacrylate)-block-poly(2- (acetoacetoxy)ethyl methacrylate)
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A series of poly(η-butyl methacrylate)-block-poly(2-(acetoacetoxy)ethyl methacrylate)s (PBMA-b-PAEMA) were studied according to the formation of core-shell micelles in dilute cyclohexane solution (PBMA-shell, PAEMA-core). Although being a strongly segregating system, the appearance of different shapes of micelles could not appropriately be described by simple space-filling arguments within the geometric model of Antonietti and Förster et al. [J. Chem. Phys. 1996, 104, 9956-9970]. The model was refined through introduction of the aspect ratio of the core-forming monomer unit for the calculation of geometric packing parameters. © 2009 American Chemical Society.