Archimedean Tilings and Hierarchical Lamellar Morphology Formed by Semicrystalline Miktoarm Star Terpolymer Thin Films - Archive ouverte HAL Access content directly
Journal Articles ACS Nano Year : 2016

Archimedean Tilings and Hierarchical Lamellar Morphology Formed by Semicrystalline Miktoarm Star Terpolymer Thin Films

Abstract

3-Miktoarm star terpolymer architecture provides a window of opportunity in the design of complex "three-colored" patterns at the nanometer scale. Here, the directed self-assembly (DSA) of 3-miktoarm star terpolymer (poly(1, 1-dimethyl silacydobutane)-arm-polystyrene-armpoly(D,L-lactide acid)) (PDMSB-arm-PS-arm-PLA, noted hereafter 3 mu-DSL) into a hierarchical lamellar morphology is described. Excellent orientational order has been achieved by templating the asymmetric hierarchical lamellar morphology with topographical substrates. Increasing the PLA volume fraction leads to the formation of a hexagonal [6.6.6] Archimedean tiling which coexists with a metastable square symmetry [4.8.8] tiling stabilized by the step between terraces. Stability of the [6.6.6] tiling over the [4.8.8] one is also demonstrated with GISAXS measurements.

Dates and versions

hal-01369604 , version 1 (21-09-2016)

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Karim Aissou, Wonsang Kwon, Muhammad Mumtaz, Ségolène Antoine, Mireille Maret, et al.. Archimedean Tilings and Hierarchical Lamellar Morphology Formed by Semicrystalline Miktoarm Star Terpolymer Thin Films. ACS Nano, 2016, 10 (4), pp.4055-4061. ⟨10.1021/acsnano.5b06728⟩. ⟨hal-01369604⟩
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