Topic
Gyroid
About: Gyroid is a research topic. Over the lifetime, 836 publications have been published within this topic receiving 32588 citations.
Papers published on a yearly basis
Papers
TL;DR: Model Q230 proposed by Mariani and his co-workers satisfactorily fits the x-ray data collected on the cubic mesostructure material and suggests that the silicate polymer forms a unique infinite silicate sheet sitting on the gyroid minimal surface and separating the surfactant molecules into two disconnected volumes.
Abstract: A model is presented to explain the formation and morphologies of surfactant-silicate mesostructures. Three processes are identified: multidentate binding of silicate oligomers to the cationic surfactant, preferential silicate polymerization in the interface region, and charge density matching between the surfactant and the silicate. The model explains present experimental data, including the transformation between lamellar and hexagonal mesophases, and provides a guide for predicting conditions that favor the formation of lamellar, hexagonal, or cubic mesostructures. Model Q(230) proposed by Mariani and his co-workers satisfactorily fits the x-ray data collected on the cubic mesostructure material. This model suggests that the silicate polymer forms a unique infinite silicate sheet sitting on the gyroid minimal surface and separating the surfactant molecules into two disconnected volumes.
1,531 citations
TL;DR: Using self-consistent field theory, microphases of diblock copolymers are examined and a stable gyroid phase is found which occurs between the lamellar and hexagonal ones and terminates at a triple point.
Abstract: Using self-consistent field theory, we examine microphases of diblock copolymers and find, in addition to lamellar, hexagonal, and cubic phases, a stable gyroid phase which occurs between the lamellar and hexagonal ones. It terminates at a triple point, with a lamellar to hexagonal transition occurring in the weak-segregation limit. Other phases of experimental interest are studied, and we describe the regions in which they are most nearly stable.
1,419 citations
TL;DR: Highly ordered hexagonal mesoporous silica SBA-15 with fiber, rope, donut, sphere, gyroid and discoid-like morphology have been synthesized.
Abstract: Highly ordered hexagonal mesoporous silica SBA-15 with fiber, rope, donut, sphere, gyroid, and discoid-like morphology have been synthesized.
1,176 citations
TL;DR: Based on analytical and numerical analysis, researchers predict Weyl point formation in 3D photonic crystals as discussed by the authors, which is the first 3D linear point degeneration between two bands (Weyl points) observed.
Abstract: Materials exhibiting three-dimensional (3D) linear dispersion relations between frequency and wavevector are expected to display a wide range of interesting phenomena. 3D linear point degeneracies between two bands (“Weyl points”) have yet to be observed. Based on analytical and numerical analysis, researchers predict Weyl point formation in 3D photonic crystals.
761 citations
TL;DR: In this paper, the authors reported the identification of a new equilibrium microdomain morphology in an intermediate to weakly segregated diblock copolymer melt, which belongs to the cubic space group Ia3d and possesses a bicontinuous cubic microstructure.
Abstract: The authors report the identification of a new equilibrium microdomain morphology in an intermediate to weakly segregated diblock copolymer melt. A polystyrene-polyisoprene (SI) diblock copolymer consisting of 37 wt% styrene and of total M[sub w] = 27,400 was observed to transform from the lamellar morphology (in equilibrium at low annealing temperatures) to a new morphology at annealing temperatures approximately 50 C below the order-disorder transition (ODT). The transformation was observed to be thermoreversible. Investigation of the new morphology via small-angle X-ray scattering (SAXS) and transmission electron microscopy (TEM) revealed the new structure to have remarkable three-dimensional long-range order, to belong to the cubic space group Ia3d, and to possess a bicontinuous cubic microstructure. From computer simulations of model structures and comparison with microscopy results, the authors propose models for the new morphology based on the triply periodic G minimal surface (gyroid) discovered by Schoen; similar morphologies have been observed in a variety of microphase-separated surfactant-water systems. Blends of this diblock with various short-chain homopolymers were used to investigate the compositional extent of the region of Ia3d stability on the phase diagram; the results indicate that the Ia3d phase is stable over a wide range of minority component volume fractions.
752 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2026 | 1 |
| 2025 | 124 |
| 2024 | 142 |
| 2023 | 150 |
| 2022 | 225 |
| 2021 | 102 |