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Abstract
Rectangular platelets formed by the self-assembly of block copolymers in selective solvents are of interest for a range of applications. Recently we showed that the seeded growth of crystallizable blends of a block copolymer and homopolymer yields well-defined, low dispersity examples of these two-dimensional (2D) structures. The key feature was the use of the same crystallizable polymer segment in the seed and blend components to enable an efficient homoepitaxial growth process. Herein we demonstrate that this 2D crystallization-driven self-assembly approach can be extended to heteropitaxial growth by the use of different crystallizable polymers with compatible crystal structures. This allows the formation of well-defined “patchy” rectangular platelets and platelet block comicelles with different core chemistries. The use of scanning transmission electron microscopy–energy-dispersive X-ray spectroscopy provided key information on the spatial location of the components in the resulting assemblies and thereby valuable insight into the 2D heteroepitaxial growth process.
Original language | English |
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Pages (from-to) | 4409–4417 |
Number of pages | 9 |
Journal | Journal of the American Chemical Society |
Volume | 139 |
Issue number | 12 |
Early online date | 15 Mar 2017 |
DOIs | |
Publication status | Published - 29 Mar 2017 |
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Dive into the research topics of 'Uniform “Patchy” Platelets by Seeded Heteroepitaxial Growth of Crystallizable Polymer Blends in Two Dimensions'. Together they form a unique fingerprint.Projects
- 1 Finished
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3-month Core Capability for Chemistry Research
Crosby, J. (Principal Investigator)
1/01/13 → 1/04/13
Project: Research
Profiles
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Professor Charl F J Faul
- School of Chemistry - Professor of Materials Chemistry
- Science Faculty Office - Associate Pro Vice Chancellor (Global Engagement)
- Cabot Institute for the Environment
- Materials for Energy
- Soft Matter, Colloids and Materials
Person: Academic , Member