Effects of Asymmetric Interaction Energies on the Microphase Separation Behavior of H-shaped (AC)B(CA) Ternary Block Copolymer Systems: A Real-Space SCF Study
✍ Scribed by De-Wen Sun; Zhao-Yan Sun; Hong-Fei Li; Li-Jia An
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 791 KB
- Volume
- 19
- Category
- Article
- ISSN
- 1022-1344
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✦ Synopsis
Abstract
The microphase separation behavior of H‐shaped (AC)B(CA) ternary block copolymer systems with asymmetric interaction parameters are studied in 3D space by a combinatorial screening method based on SCF theory. The focus is on systems with asymmetric interaction energies among three species, where the Flory‐Huggins interaction parameters obey χ~AC~ < χ~AB~ = χ~BC~ and χ~AC~ > χ~AB~ = χ~BC~. It is shown that the asymmetric interaction energies enlarge the stable regions of “two‐color” and “three‐color” core/shell microphase morphologies near the three edges of triangle phase diagrams. The “three‐color” hexagonal honeycomb packed cylinder (HEX~3~‐PC) morphology and the simple cubic spheres connected by cylinders (SCS + C) morphology are found stable.
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