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Issue 19, 2016
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Polyferrocenylsilanes: synthesis, properties, and applications

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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.

Graphical abstract: Polyferrocenylsilanes: synthesis, properties, and applications

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Article information

26 Feb 2016
First published
27 Jun 2016

Chem. Soc. Rev., 2016,45, 5358-5407
Article type
Review Article
Author version available

Polyferrocenylsilanes: synthesis, properties, and applications

R. L. N. Hailes, A. M. Oliver, J. Gwyther, G. R. Whittell and I. Manners, Chem. Soc. Rev., 2016, 45, 5358
DOI: 10.1039/C6CS00155F

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