Direct visualization of layer-by-layer self-assembled multilayers of organometallic polymers

Halfyard, John; Galloro, Josie; Ginzburg, Madlen; Wang, Zhuo; Coombs, Neil; Manners, Ian; Ozin, Geoffrey A.

doi:10.1039/b202769k

Cited by 23 publications

(33 citation statements)

References 15 publications

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“…Characterization of PFS multilayers by TEM may allow the effect of polymer structure, composition and charge density on thin film thicknesses to be established. Figure 7 gives an example of TEM images for the cross-section of an organic-PFS hybrid multilayer (composed of PFS polycation 5 and PSS) and a full PFS multilayer (composed of PFS polycation 5 and polyanion 10) [38].…”

Section: Multilayer Formation and Characterizationmentioning

confidence: 99%

“…The successful exploration of these hybrid multilayer thin films was soon extended to the fabrication of fully organometallic superlattices solely composed of PFS polyelectrolytes. Multilayers were deposited on (but are not restricted to) quartz slides, silicon wafers, gold substrates, and quartz crystal microbalance substrates [36][37][38]. For gold substrates, normally a predeposited thiol monolayer (such as sodium 3-mercapto-1-propanesulfonate, 11-mercaptoundecanoic acid, or 2-aminoethanethiol hydrochloride) was applied to impart negative or positive charges to the surfaces.…”

Section: Multilayer Formation and Characterizationmentioning

confidence: 99%

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Electrostatic Assembly with Poly(ferrocenylsilanes)

Hempenius

Vancso

2007

J Inorg Organomet Polym

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New frontiers in polymer science involve the incorporation of functional species into material systems. The electrostatic layer-by-layer (LBL) self-assembly technique constitutes a versatile tool for nano-and microscale fabrication of devices and novel material structures. Although a rapidly growing attention has been paid to this area, most of the studies conducted were based on organic polymeric electrolytes. Due to synthetic developments, new polymeric structures with inorganic elements and transition metals incorporated in the main chain have become accessible. With the development of new synthesis routes, organometallic poly(ferrocenylsilane) polycations and polyanions emerged. Their charged nature and water-solubility made them excellent candidates for the extension of electrostatic multilayer assembly to organometallic polymeric materials. The present review gives a concise summary on the LBL fabrication of organometallic thin films and microcapsules based on water-soluble poly(ferrocenylsilane) polyions. The unique functions of these structures come from the molecular structure of poly(ferrocenylsilanes), in which silicon atoms and redoxactive ferrocene units are present. In this context, the diverse application potentials of these organometallic multilayer structures are also discussed.

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Section: Multilayer Formation and Characterizationmentioning

confidence: 99%

Section: Multilayer Formation and Characterizationmentioning

confidence: 99%

Electrostatic Assembly with Poly(ferrocenylsilanes)

Hempenius

Vancso

2007

J Inorg Organomet Polym

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“…[201][202][203][204][205][206] A number of water-soluble poly(ferrocenylsilanes) and polyelectrolytes have also been produced by side-chain functionalization. [207][208][209][210][211][212][213][214] Scheme 50 shows the synthesis of water-soluble anionic (153) and cationic (155) polyelectrolytes. [212] Pannell and coworkers have reported the use of poly(ferrocenylsilane) homo-and copolymers as coatings for tapered optical-fiber gas sensors of NH 3 , CO 2 and N 2 O.…”

Section: Ring-opening Polymerizationmentioning

confidence: 99%

“…[289,290] In 1988, Macomber and coworkers reported the synthesis of an unsaturated tungsten-carbene complex that underwent polymerization upon standing under a nitrogen atmosphere at 10 8C for 7 d (Scheme 67). [289] The resulting polymer (211) was insoluble in all organic solvents tested, however its structure was identified by IR, solid-state NMR and Xray photoelectron spectroscopies. If this polymer was placed in DMSO for 4 d at 25 8C, a copolymer (212) containing metal-carbene methyl acrylate units was isolated.…”

Section: Scheme 63mentioning

confidence: 99%

Organometallic Polymers of the Transition Metals

Abd‐El‐Aziz

2002

Macromol. Rapid Commun.

164

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This article provides a comprehensive review of the synthesis, properties and applications of organometallic polymers of the transition metals. The different classes of organometallic polymers are described according to their structural make‐up, as well as by their methods of synthesis. A number of examples of each class are given to emphasize the richness and diversity in these areas of research. In addition to linear polymers, hyperbranched, crosslinked, star and dendritic polymers are also described. The properties that transition metal‐containing organometallic polymers possess, as well as the applications that these materials have found in various domains are highlighted. magnified image

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“…174,175 The polyions were deposited electrostatically onto a variety of substrates, such as silicon, gold, and hydrophilic/hydrophobically patterned substrates, the latter of which led to the formation of laterally structured PFS multilayers. 176 It was reported that hydroxyl-terminated monolayer alkanethiol regions prevented deposition of the polyions due to hydrogen-bonding interactions with the solvent.…”

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

confidence: 99%