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Phase behavior in thin films of cylinder-forming ABA block copolymers: Experiments
Abstract
We experimentally establish a phase diagram of thin films of concentrated solutions of a cylinder forming polystyrene-block-polybutadiene-block-polystyrene triblock copolymer in chloroform. During annealing the film forms islands and holes with energetically favored values of film thickness. The thin film structure depends on the local thickness of the film and the polymer concentration. Typically, at a thickness close to a favored film thickness parallel orientation of cylinders is observed, while perpendicular orientation is formed at an intermediate film thickness. At high polymer concentration the cylindrical microdomains reconstruct to a perforated lamella structure. Deviations from the bulk structure, such as the perforated lamella and a wetting layer are stabilized in films thinner than ≈1.5 domain spacings.
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Citations
Cited by
Solvent Vapor Annealing of Block Polymer Thin Films
Sinturel, C., Vayer, M., Morris, M., & Hillmyer, M. A. (2013) · Macromolecules · doi:10.1021/ma400735a · Cited by 543
(2007) · doi:10.1002/9783527610570.ch9 · Cited by 20
Metadata
- Authors
- Knoll, A., Magerle, R., & Krausch, G.
- Venue
- The Journal of Chemical Physics
- Publisher
- AIP Publishing
- Published
- 2004-01-08
- Volume
- 120
- Issue
- 2
- Pages
- 1105-1116
- ISSN
- 0021-9606 (ISSN-L)
- 1089-7690
- OpenAlex
- W2060337814
- Cited by
- 201
- References
- 0
- FWCI
- 5.30
- Type
- journal article
- Language
- en
- Open access
- closed
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- Knoll, A., Magerle, R., & Krausch, G. (2004). Phase behavior in thin films of cylinder-forming ABA block copolymers: Experiments. The Journal of Chemical Physics. https://doi.org/10.1063/1.1627324
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
