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Figure 5
(a) Simulant results of graft density variation of AuNPs in accordance with the graft chain length, indicating a relation of attraction versus repulsion of particles. The structures transform from spherical aggregates to elongated lines when the graft chain length increases at a fixed graft density. Compared with line [I], where the two factors of graft density and chain length are balanced, deviation from this balanced condition, e.g. [II] and [III], moves away from anisotropic line patterns. (b) Experimentally obtained relationship between the particle density and the correlation length for the designed f (0, 50 and 70) with 2PEG10000 (×5). The result shows that the long correlation length matches with the observed elongated structure along with the increase in f. This is a similar tendency to the free graft particulate system shown in (a). Compared with the balanced line [I], the deviation of [II] and [III] moves away from the anisotropic line patterns.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 27| Part 4| July 2020| Pages 1033-1041
https://doi.org/10.1107/S1600577520006682
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