and aqueous gels. For NCCM, the shell molecules of the micelles can be further
cross-linked, and after changed the solvent to dissolute the core component, the
hollow microspheres can be fabricated. Such micelles and hollow microspheres are
viable to realize the environmental-response function, reversible self-assembly and
disassembly, promising wide potential applications.
Question Sets
- Try to explain the principle of precipitation fractionation of polydisperse poly-
mer solutions. - Why can we say that the cloud point when the mixing system turns into opaque is
close to the spinodal temperature? - What kinds of different morphological features occur at the early stages of
spinodal decomposition and nucleation? - Why do diblock copolymers (10.5) contain the larger critical segregation
strength than the symmetric polymer blends (¼2)?
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184 9 Polymer Phase Separation