1,1 -Poly ferrocenes

Fig. 3 Cross-sectional SEM image of a patterned silicon substrate. By means of micromolding in capillaries (MIMIC), Si was decorated with poly(ferrocen)ddimethylsilane) lines, followed by etching with SFe (3 min) in a cryogenic reactive ion etcher. The organo-metallic polymer residue was removed with nitric acid...

Fig. 6 Solvent-assisted dewetting of poly(ferrocen)dmeth)dphenylsilane) (PFMPS) confined between a PDMS stamp and silicon substrate. Schematic diagram (left) and AFM height image (right) with section analysis after 10 minutes of CF4/O2-RIE treatment. Reprinted with permission from [5]. Copyright 2003, American Chemical Society...

Scheme 2.5 Syntheses of hyperbranched poly(ferrocene)s by desalt polycoupling of dUithiofer-rocene with trichlorides of silicon, phosphorus and antimony...

Nagao S, Kato A, Nakajima A, Kaya K (2000) Multiple-decker sandwich poly-ferrocene clusters. J Am Chem Soc 122 4221-4222... 

MacLachlan MJ, Lough AJ, Manners 1 (1996) SpirocycUc [IJferrocenophanes novel cross-linking agents for ring-opened poly(ferrocenes). Mactomolecules 29 8562-8564... 

Schematic illustration of the oxidation of poly(ferrocene) to the corresponding poly(ferricin-ium). Chromatographic separation of (dT)i2 i8 on (a) poly(ferricinium)-grafted mesoporous Nucleosil 300-5, (b) poly(octamethylferricinium)-grafted mesoporous Nucleosil 300-5, and (c) poly(octamethylferricinium)-grafted nonporous Micra. (Reprinted with permission from Eder et al. 2001. Alkyne metathesis graft polymerization Synthesis of poly(ferricinium)-based silica supports for anion-exchange chromatography of oligonucleotides. Macromolecules 34 (13) 4334—4341, copyright (2001) American Chemical Society.)...

Self-assembly of a poly(ferrocene)- -polysiloxane- polyferrocene triblock polymer 504... 

PDMS300 (PFS PDMS = 1 6) in hexane. (Reproduced with permission from J. A. Massey, K.N. Power, M.A. Winnik and I. Manners, Organometallic nanostructures Self-assembly of poly (ferrocene) block copolymers, Advanced Materials, 1998, 10, 1559. Wiley-VCH Verlag GmbH Co. KGaA.)... 

Gomez-Elipe, P., Resendes, R., Macdonald, P.M., and Manners, I. (1998) Transition metal catalyzed ring-opening polymerization (ROP) of silicon-bridged [l]ferrocenophanes facile molecular weight control and the remarkably convenient synthesis of poly(ferrocenes) with regioregular, comb, star, and block architectures. Journal of the American Chemical Society, 120,8348. 

MacLachlan, M.J., Lough, A.J., and Manners, 1. (1996) Spirocyclic [l]ferrocenophanes novel cross-linking agents far ring-opened poly(ferrocenes). Macromolecules, 29,8562. 

Massey, J.A., Power, K.N., Winnik, M.A., and Manners, 1. (1998a) Organometallic nanostructures self-assembly of poly(ferrocene) block copolymers. Advanced Materials, 10,1559. 

In 1992, Brandt and Rauchfuss reported the synthesis of polyferrocenylene persulfides via ROP of and desulfurization of [3]-trithiaferrocenes. High MW linear and network poly(ferrocene persulfide)s were produced by reaction of the trithiaferrocenes with These disulfide-linked ferrocene polymers... 

Functionalized conducting monomers can be deposited on electrode surfaces aiming for covalent attachment or entrapment of sensor components. Electrically conductive polymers (qv), eg, polypyrrole, polyaniline [25233-30-17, and polythiophene/23 2JJ-J4-j5y, can be formed at the anode by electrochemical polymerization. For integration of bioselective compounds or redox polymers into conductive polymers, functionalization of conductive polymer films, whether before or after polymerization, is essential. In Figure 7, a schematic representation of an amperomethc biosensor where the enzyme is covalendy bound to a functionalized conductive polymer, eg, P-amino (polypyrrole) or poly[A/-(4-aminophenyl)-2,2 -dithienyl]pyrrole, is shown. Entrapment of ferrocene-modified GOD within polypyrrole is shown in Figure 7. 

Ferrocene is acylated with a number of poly- and perfluonnated acid anhydrides [44],... 

Poly(arylene thioether)s, 363-364 Poly(arylene thioether sulfone)s, 364 Poly(aryl sulfone) derivatives, 354 Poly(p-benzamide), synthesis of, 188-189 Polybenzimidazoles (PBIs), 265 ferrocene-containing, 315 synthesis of, 313... 

F. la-c. Cyclic voltammograms of dissolved and stance confined ferrcx ne in a< tonitrile/0.1 M TBAP. a. 4 X 10 M dissolved ferrocene at Pt. b. 4-ferrocenyl-phenylacetamid monolayer bound to Pt (ref. ). c. Poly-vinylferrocene dip coated on Pt,r = 1 x lO raolcm. Straight arrows indicate diffusional events. Curved arrows electron transfer events (from ref. ). 

Ferrocene has been extensively used as a building block to prepare organo-metallic polymers and heteroatom-bridged poly(metallocenes)(G )-(G ")(Fig 4). 

Segmented Poly(ether urethane) Filins Containing Ferrocene Units in the Hard Segments... 

Segmented poly(ether urethanes) were synthesized from polypropylene glycol (PPG) and 4,4 methylene-bis(phenyl-isocyanate) (MDI), using l,l -bis(B-aminoethyl)ferrocene (1) and 1,1 -bis(B-hydroxyethyl)-ferrocene (2) as chain extenders. 

Fig. 7. Horse-liver alcohol dehydrogenase (HLADH) catalyzed alcohol oxidation at a graphite felt anode modified by poly(acrylic acid) (PAA) under coimmobilization of ferrocene derivatives (Fc), diaphorase (Dp), and HLADH [39]...

The third approach has been to graft the redox couple by means of a covalent bond to the polyelectrolyte backbond as described early in 1965 in the book of Cassidy and Run [20]. Several of these systems are charged polymers in at least one oxidation state, like poly(viologen), poly(vinylferrocene), and so on. Examples of polyelectrolytes like polyacrylic acid with covalently bound viologen were reported by Fernandez, Katz and coworkers [21], hydroquinone [22] and Anson et al. with bound ferrocene [23]. 

---