Electrografting of Stimuli-Responsive, Redox Active Organometallic Polymers to Gold from Ionic Liquids

Feng, Xueling; Sui, Xiaofeng; Hempenius, Mark A.; Vancso, G. Julius

doi:10.1021/ja503807r

Cited by 58 publications

(88 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…186 Very low surface coverages were achieved by inserting from very dilute PFS solutions. 189 The polymer films were employed as an ascorbic acid sensor, exhibiting high sensitivity, stability, and reproducibility. 187 In aqueous NaClO 4 , two reversible redox peaks were observed, as expected for the stepwise oxidation of PFSs (Section 3.4).…”

Section: View Article Onlinementioning

confidence: 99%

Polyferrocenylsilanes: synthesis, properties, and applications

et al. 2016

View full text Add to dashboard Cite

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.

show abstract

Section: View Article Onlinementioning

confidence: 99%

Polyferrocenylsilanes: synthesis, properties, and applications

et al. 2016

View full text Add to dashboard Cite

show abstract

“…The occurrence of the metallic phase transition has been evidenced using different methods, including scanning electrochemical microscopy (SECM), electrochemical atomic force microscopy (EC-AFM), and X-ray photoelectron spectroscopy (XPS)30313233. More recently, the possibility to generate this new phase in the presence of tasks specific ionic liquid was reported343536. Moreover, the reducing power of the generated material was successfully employed to initiate a self-reduction process, generating a bi-functional redox system29303738.…”

mentioning

confidence: 99%

Multifunctional Indium Tin Oxide Electrode Generated by Unusual Surface Modification

Bouden

Dahi

Hauquier

et al. 2016

Sci Rep

View full text Add to dashboard Cite

The indium tin oxide (ITO) material has been widely used in various scientific fields and has been successfully implemented in several devices. Herein, the electrochemical reduction of ITO electrode in an organic electrolytic solution containing alkali metal, NaI, or redox molecule, N-(ferrocenylmethyl) imidazolium iodide, was investigated. The reduced ITO surfaces were investigated by X-ray photoelectron spectroscopy and grazing incident XRD demonstrating the presence of the electrolyte cation inside the material. Reversibility of this process after re-oxidation was evidenced by XPS. Using a redox molecule based ionic liquid as supporting electrolyte leads to fellow electrochemically the intercalation process. As a result, modified ITO containing ferrocenyl imidazolium was easily generated. This reduction process occurs at mild reducing potential around −1.8 V and causes for higher reducing potential a drastic morphological change accompanied with a decrease of the electrode conductivity at the macroscopic scale. Finally, the self-reducing power of the reduced ITO phase was used to initiate the spontaneous reduction of silver ions leading to the growth of Ag nanoparticles. As a result, transparent and multifunctional active ITO surfaces were generated bearing redox active molecules inside the material and Ag nanoparticles onto the surface.

show abstract

“…Gold electrodes have also been modified by cathodic reduction of the Au substrates, immersed in a solution of imidazolium−functionalised PFS chains in the poly(ionic liquid), 1-ethyl-3-methylimidazolium ethyl sulfate. 188 The polymer films were employed as an ascorbic acid sensor, exhibiting high sensitivity, stability, and reproducibility. A high sensitivity to ascorbic acid was also exhibited by PFS films formed by an alkylation reaction of an amine monolayer on silicon or gold surfaces with PFS chains featuring iodopropyl side groups.…”

Section: Layer-by-layer Assembly Of Water-soluble Polyferrocenylsilanmentioning

confidence: 99%

Synthesis and Solution Self‐Assembly of Polyisoprene‐block‐poly(ferrocenylmethylsilane): A Diblock Copolymer with an Atactic but Semicrystalline Core‐Forming Metalloblock

Qiu

Winnik

et al. 2016

Macro Chemistry & Physics

View full text Add to dashboard Cite

show abstract

Electrografting of Stimuli-Responsive, Redox Active Organometallic Polymers to Gold from Ionic Liquids

Cited by 58 publications

References 45 publications

Polyferrocenylsilanes: synthesis, properties, and applications

Polyferrocenylsilanes: synthesis, properties, and applications

Multifunctional Indium Tin Oxide Electrode Generated by Unusual Surface Modification

Synthesis and Solution Self‐Assembly of Polyisoprene‐block‐poly(ferrocenylmethylsilane): A Diblock Copolymer with an Atactic but Semicrystalline Core‐Forming Metalloblock

Contact Info

Product

Resources

About