Uniform patchy and hollow rectangular platelet micelles from crystallizable polymer blends

Qiu, Huibin; Gao, Yang; Boott, Charlotte E.; Gould, Oliver; Harniman, Robert L.; Miles, Mervyn J; Webb, S; Winnik, Mitchell A.; Manners, Ian

doi:10.1126/science.aad9521

Cited by 329 publications

(376 citation statements)

References 42 publications

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“…These concentric multicompartment aggregates were easily visualised by LSCM through the use of BCPs functionalised with red, green and blue fluorescent dyes (see Fig. 386 5.3.7. Single-and doubleheaded arrow-and spear-type architectures were also formed through using both unidirectional non-centrosymmetric and longer cylindrical seed micelles, respectively.…”

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confidence: 99%

Polyferrocenylsilanes: synthesis, properties, and applications

et al. 2016

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This in-depth review covers progress in the area of polyferrocenylsilanes (PFS), a well-established, readily accessible class of main chain organosilicon metallopolymer consisting of alternating ferrocene and organosilane units. Soluble, high molar mass samples of these materials were first prepared in the early 1990s by ring-opening polymerisation (ROP) of silicon-bridged [1]ferrocenophanes (sila[1]ferrocenophanes). Thermal, transition metal-catalysed, and also two different living anionic ROP methodologies have been developed: the latter permit access to controlled polymer architectures, such as monodisperse PFS homopolymers and block copolymers. Depending on the substituents, PFS homopolymers can be amorphous or crystalline, and soluble in organic solvents or aqueous media. PFS materials have attracted widespread attention as high refractive index materials, electroactuated redox-active gels, fibres, films, and nanoporous membranes, as precursors to nanostructured magnetic ceramics, and as etch resists to plasmas and other radiation. PFS block copolymers form phase-separated iron-rich, redox-active and preceramic nanodomains in the solid state with applications in nanolithography, nanotemplating, and nanocatalysis. In selective solvents functional micelles with core-shell structures are formed. Block copolymers with a crystallisable PFS core-forming block were the first to be found to undergo "living crystallisation-driven self-assembly" in solution, a controlled method of assembling block copolymers into 1D or 2D structures that resembles a living covalent polymerisation, but on a longer length scale of 10 nm-10 μm.

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confidence: 99%

Polyferrocenylsilanes: synthesis, properties, and applications

et al. 2016

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“…We note that the present system has some similarities with crystal polymorphism and amyloid fibrillation and may promote better understanding and hence control of such intricate phenomena at the molecular level. More practically, the concept of coupled equilibria should be useful to advance programmed supramolecular polymerization and its applications 36, 38, 48–62 .…”

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confidence: 99%

Autocatalytic Time-Dependent Evolution of Metastable Two-Component Supramolecular Assemblies to Self-Sorted or Coassembled State

Fukui

Takeuchi

Sugiyasu

2017

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Despite substantial effort devoted in the history of supramolecular chemistry, synthetic supramolecular systems still lag behind biomolecular systems in terms of complexity and functionality. This is because biomolecular systems function in a multicomponent molecular network under out-of-equilibrium conditions. Here we report two-component supramolecular assemblies that are metastable and thus show time-dependent evolution. We found that the systems undergo either self-sorting or coassembly in time depending on the combination of components. Interestingly, this outcome, which had been previously achievable only under specific conditions, emerged from the two-component systems as a result of synergistic or reciprocal interplay between the coupled equilibria. We believe that this study sheds light on the similarity between synthetic and biomolecular systems and promotes better understanding of their intricate kinetic behaviors.

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“…16,17 Moreover, the use of 2D platelets of different shape as building blocks permits an additional level of control. For example, addition of the polymer blend (PFS25/PFS25-b-P2VP250 = 1:1 based on mass ratio) to quasi-hexagonal disk-like platelets (grown from 2D seedHD) or 2D rectangular analogues (prepared either from 1D PFS25-b-P2VP250 seeds or 2D seedR1) yielded block coplatelets in which the precursor shape was retained (Fig.…”

Section: Seeded Growth Of Pfs Homopolymers With Charged End-groups Usmentioning

confidence: 99%

“…In contrast, analogous seeded growth of a crystallizable blend of PFS homopolymer and a PFS BCP with a long corona-forming segment affords rectangular platelet micelles. 17 Moreover, sequential addition of different blends to generate block comicelles followed by spatially selective processing allows their programmed disassembly to yield perforated or hollow rectangular morphologies. In this case, the presence of a corona-forming block of significant length improves the colloidal stability of the resulting 2D structures, but the blend approach adds a degree of complexity because of the need to determine the optimum homopolymer and BCP ratio.…”

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Two-dimensional assemblies from crystallizable homopolymers with charged termini

et al. 2017

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Uniform patchy and hollow rectangular platelet micelles from crystallizable polymer blends

Abstract: General rightsThis document is made available in accordance with publisher policies. Please cite only the published version using the reference above.

Cited by 329 publications

References 42 publications

Polyferrocenylsilanes: synthesis, properties, and applications

Polyferrocenylsilanes: synthesis, properties, and applications

Autocatalytic Time-Dependent Evolution of Metastable Two-Component Supramolecular Assemblies to Self-Sorted or Coassembled State

Two-dimensional assemblies from crystallizable homopolymers with charged termini

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