Directional-dependent pockets drive columnar-columnar coexistence
The rational design of materials requires a fundamental understanding of the mechanisms driving their self-assembly. This may be particularly challenging in highly dense and shape-asymmetric systems. Here we show how the addition of tiny non-adsorbing spheres (depletants) to a dense system of hard d...
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| Veröffentlicht in: | Soft matter 2020-07, Vol.16 (29), p.672-6724 |
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| container_title | Soft matter |
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| creator | González García, Álvaro Tuinier, Remco de With, Gijsbertus Cuetos, Alejandro |
| description | The rational design of materials requires a fundamental understanding of the mechanisms driving their self-assembly. This may be particularly challenging in highly dense and shape-asymmetric systems. Here we show how the addition of tiny non-adsorbing spheres (depletants) to a dense system of hard disc-like particles (discotics) leads to coexistence between two distinct, highly dense (liquid)-crystalline columnar phases. This coexistence emerges due to the directional-dependent free-volume pockets for depletants. Theoretical results are confirmed by simulations explicitly accounting for the binary mixture of interest. We define the stability limits of this columnar-columnar coexistence and quantify the directional-dependent depletant partitioning.
The rational design of materials requires a fundamental understanding of the mechanisms driving their self-assembly. |
| doi_str_mv | 10.1039/d0sm00802h |
| format | Article |
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| fulltext | fulltext |
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| ispartof | Soft matter, 2020-07, Vol.16 (29), p.672-6724 |
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| language | eng |
| recordid | cdi_crossref_primary_10_1039_D0SM00802H |
| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Binary mixtures Coexistence Depletion Self-assembly |
| title | Directional-dependent pockets drive columnar-columnar coexistence |
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