Square and Rectangular Symmetry Tiles from Bulk and Thin Film 3‐Miktoarm Star Terpolymers

Aissou, Karim; Nunns, Adam; Manners, Ian; Ross, Caroline A.

doi:10.1002/smll.201300657

Cited by 21 publications

(32 citation statements)

References 55 publications

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“…In spite of the long‐range order of the Q 214 phase, we can note that some P2VP domains are not perfectly formed within the structure which induces a certain level of distribution in size of the gold nanodots. This phenomenon suggests that the microphase‐separation of DSV chains occurs in a two‐step mechanism as already observed for self‐assembled ABC 3 ‐ miktoarm star terpolymer chains …”

Section: Resultssupporting

confidence: 72%

Metallic Nanodot Patterns with Unique Symmetries Templated from ABC Triblock Terpolymer Networks

Aissou

Mumtaz

Álvarez-Fernández

et al. 2018

Macromol. Rapid Commun.

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Nanotemplates derived from the self-assembly of AB-type block copolymers provide an elegant route to achieve well-defined metallic dot arrays, even if the variety of pattern symmetries is restricted due to the limited number of structures offered by microphase separated diblock copolymers. A strategy that relies on the use of complex network structures accessible through the self-assembly of linear ABC-type terpolymers is presented for the formation of metallic nanodots arrays with "outside-the-box" symmetries. Patterned templates formed by the cubic Q and orthorhombic O network structures are used as excellent platforms to build well-ordered gold nanodot arrays with unique p3m1 and p2 symmetries, respectively. A simple yet efficient blending strategy is used to tune the critical dimensions of the p3m1 pattern while laterally ordered gold nanodot arrays are also demonstrated through a directed self-assembly approach. Such highly ordered gold nanodots with tunable particle dimensions and array periods, enabling the control of their plasmonic responses, are attractive probes for biological imaging.

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Section: Resultssupporting

confidence: 72%

Metallic Nanodot Patterns with Unique Symmetries Templated from ABC Triblock Terpolymer Networks

Aissou

Mumtaz

Álvarez-Fernández

et al. 2018

Macromol. Rapid Commun.

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“…411,412 The morphology of the films was readily manipulated by changing the volume fractions of each arm type in accordance with theory and characterized by TEM analysis (Figure 74). 411 To fully elucidate the film structures via TEM, the PI domains were selectively stained with OsO 4 while the metal-containing blocks intrinsically impart contrast so that while the PS domains remain white the PI and PFS domains appear black and gray, respectively.…”

Section: Nanostructured Thin Filmsmentioning

confidence: 99%

Star Polymers

et al. 2016

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Recent advances in controlled/living polymerization techniques and highly efficient coupling chemistries have enabled the facile synthesis of complex polymer architectures with controlled dimensions and functionality. As an example, star polymers consist of many linear polymers fused at a central point with a large number of chain end functionalities. Owing to this exclusive structure, star polymers exhibit some remarkable characteristics and properties unattainable by simple linear polymers. Hence, they constitute a unique class of technologically important nanomaterials that have been utilized or are currently under audition for many applications in life sciences and nanotechnologies. This article first provides a comprehensive summary of synthetic strategies towards star polymers, then reviews the latest developments in the synthesis and characterization methods of star macromolecules, and lastly outlines emerging applications and current commercial use of star-shaped polymers. The aim of this work is to promote star polymer research, generate new avenues of scientific investigation, and provide contemporary perspectives on chemical innovation that may expedite the commercialization of new star nanomaterials. We envision in the not-too-distant future star polymers will play an increasingly important role in materials science and nanotechnology in both academic and industrial settings.

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“…267,315 Self-assembly was achieved by solvent vapour annealing in chloroform, and samples were characterised by SEM, TEM and AFM. 267,315 Self-assembly was achieved by solvent vapour annealing in chloroform, and samples were characterised by SEM, TEM and AFM.…”

Section: View Article Onlinementioning

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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Square and Rectangular Symmetry Tiles from Bulk and Thin Film 3‐Miktoarm Star Terpolymers

Cited by 21 publications

References 55 publications

Metallic Nanodot Patterns with Unique Symmetries Templated from ABC Triblock Terpolymer Networks

Metallic Nanodot Patterns with Unique Symmetries Templated from ABC Triblock Terpolymer Networks

Star Polymers

Polyferrocenylsilanes: synthesis, properties, and applications

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