Predicting the Morphology of Metallo-Supramolecular Block Copolymers with Bulky Counter Ions
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Kyrylyuk, Andriy V.; Lohmeijer, Bas G. G.; Schubert, Ulrich S.
- Abstract:
- The phase behavior of metallo-supramolecular
block copolymers with bulky counter ions is theoretically
studied within the framework of a mean-field dynamic density
functional theory and compared with recent experiments
on a polystyrene–poly(ethylene oxide) metallo-supramolecular
diblock copolymer, PS20-[Ru]-PEO70, with tetraphenylborate
counter ions. The copolymer is modeled as a triblock
polyelectrolyte, in which the metal complex is treated as the
polyelectrolyte block. The topology and kinetics of the formation
of the observed three-domain lamellar morphology in
which the polyelectrolyte blocks and bulky counter ions are
located together to form electroneutral complexes, are in
good agreement with experimental results. In addition, the
model predicts the existence of core–shell morphologies.
The agreement with and variations from the experimental
phase diagram are discussed in detail.
Morphological transformations in a metallo-supramolecular
block copolymer with bulky counter ions upon increasing the
temperature.
- Year:
- 2005
- Type of Publication:
- Article
- Journal:
- Macromolecular Rapid Communications
- Volume:
- 26
- Pages:
- 1948 - 1954