Self-Assembly of Metallo-Supramolecular Block Copolymers in Thin Films
-
Fustin, Charles-Andre; Guillet, Pierre; Misner, Matthew J.; Russell, Thomas P.; Schubert, Ulrich S.; Gohy, Jean-Francois
- Abstract:
- The self-assembly of a metallo-supramolecular PS-[Ru]-PEO block copolymer,
where -[Ru]- is a bis-2,20:60,200-terpyridine-ruthenium(II) complex, in thin films
was investigated. Metallo-supramolecular copolymers exhibit a different behavior as
compared to their covalent counterparts. The presence of the charged complex at the
junction of the two blocks has a strong impact on the self-assembly, effecting the orientation
of the cylinders and ordering process. Poly(ethylene oxide) cylinders oriented
normal to the film surface are obtained directly regardless of the experimental conditions
over a wide range of thicknesses. Exposure to polar solvent vapors can be used
to improve the lateral ordering of the cylindrical microdomains.
- Year:
- 2008
- Type of Publication:
- Article
- Keywords:
- annealing; self-assembly; supramolecular copolymers; thin films
- Journal:
- Journal of Polymer Science: Part A: Polymer Chemistry
- Volume:
- 46
- Pages:
- 4719 - 4724