Polystyrene-Dendrimer Amphiphilic Block Copolymers with a Generation-Dependent Aggregation

  title={Polystyrene-Dendrimer Amphiphilic Block Copolymers with a Generation-Dependent Aggregation},
  author={Jan C. M. van Hest and Didier Andr{\'e} Pierre Delnoye and M.W.P.L. Baars and Marcel H. P. van Genderen and E. W. Meijer},
  pages={1592 - 1595}
A class of amphiphilic macromolecules has been synthesized by combining well-defined polystyrene (PS) with poly(propylene imine) dendrimers. Five different generations, from PS-dendr-NH2 up to PS-dendr-(NH2)32, were prepared in yields of 70 to 90 percent. Dynamic light scattering, conductivity measurements, and transmission electron microscopy show that in aqueous phases, PS-dendr-(NH2)32 forms spherical micelles, PS-dendr-(NH2)16 forms micellar rods, and PS-dendr-(NH2)8 forms vesicular… 
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