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Micelle shape transitions in block copolymer/homopolymer blends: comparison of self-consistent field theory with experiment

Greenall, M. J.; Buzza, D. M. A.; McLeish, T. C. B.

Authors

M. J. Greenall

T. C. B. McLeish



Abstract

Diblock copolymers blended with homopolymer may self-assemble into spherical, cylindrical, or lamellar aggregates. Transitions between these structures may be driven by varying the homopolymer diblock molecular weight or composition. Using self-consistent field theory (SCFT), we reproduce these effects. Our results are compared to x-ray scattering and transmission electron microscopy measurements by Kinning and good agreement is found, although the tendency to form cylindrical and lamellar structures is sometimes overestimated due to our neglect of edge effects due to the finite size of these aggregates. Our results demonstrate that SCFT can provide detailed information on the self-assembly of isolated block copolymer aggregates.

Journal Article Type Article
Publication Date Jul 21, 2009
Journal JOURNAL OF CHEMICAL PHYSICS
Print ISSN 0021-9606
Electronic ISSN 1089-7690
Publisher AIP Publishing
Peer Reviewed Peer Reviewed
Volume 131
Issue 3
Article Number 034904
APA6 Citation Greenall, M. J., Buzza, D. M. A., & McLeish, T. C. B. (2009). Micelle shape transitions in block copolymer/homopolymer blends: comparison of self-consistent field theory with experiment. The Journal of chemical physics, 131(3), doi:10.1063/1.3170938
DOI https://doi.org/10.1063/1.3170938
Keywords Physical and Theoretical Chemistry; General Physics and Astronomy
Publisher URL https://aip.scitation.org/doi/10.1063/1.3170938
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