Crosslinked micellar structures

As a result of shell-crosslinking, the one-dimensional micellar structures were locked-in and preserved even if transferred from hexane to a common solvent for both blocks.26,49 Figure 3.6 illustrates a TEM image for PI32o- -PFS53 shell-cross-linked micelles. The TEM sample was prepared from a micellar solution in THF, a common solvent for both PFS and PI blocks. 

Thermally induced Volume Contraction of Nanometer-sized PNiPAM Beads in Aqueous Medium Fine mono-dispersed beads composed of a crosslinked PNiPAl were prepared in the presence of micellar structures of surfactants by free radical polymerization and the thermally induced volume contraction of the polymer beads was monitored by measuring the dynamic light scattering as a function of temperature from 25 C to 35 C and vice versa. 

If the structure of the self-assemblies can be immobilized by crosslinking of the spherical parts (the spherical microdomains in the solid state and the core in solution), the crosslinked products should form the core-shell type copolymers (microspheres) (see Figure 1). In fact, poly[st)u-ene(S)-Z>-butadiene (Bu)-Z>-S] block copolymer micelles with cores of polybutadiene (PBu) blocks in dilute solution were stabilized by crosslinking of the chains in the micellar... 

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