Ferrocene end-capped dendrimer: synthesis and application to CO gas sensor

Kim, Chung-Kyun; Park, Eunmi; Song, Chang Geun; Koo, Bon Won

doi:10.1016/s0379-6779(01)00351-4

Cited by 54 publications

(29 citation statements)

References 17 publications

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“…Since the pioneering works of the Tomalia, Newkome, and Vogtle groups in the 1980s [1][2][3][4], a surge of interest has been experienced in the synthesis and applications of dendrimers [5][6][7]. Altering terminal functionalities of commercially available dendrimer materials, such as poly (amidoamine) dendrimers (Starburst ™ PAMAMs) and poly(propyleneimine) (Astramol ™ , PPI) dendrimers, afford a wide range of potential applications in catalysis [8], drug delivery [9,10], biosensor [11][12][13], optics [14], and electronics [15]. As the efforts to synthesize and manufacture various dendrimers intensify, the quality control and characterization of various dendritic macromolecular materials still offers challenges.…”

Section: Introductionmentioning

confidence: 99%

Capillary electrophoresis of polycationic poly(amidoamine) dendrimers

et al. 2005

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Generation 2 to generation 5 poly(amidoamine) (PAMAM) dendrimers having different terminal functionalities were analyzed by capillary electrophoresis (CE). Polyacrylamide gel electrophoresis was also used to assess the composition of the individual generations for comparison with the CE results. Separation of PAMAMs can be accomplished by either using uncoated silica or silanized silica capillaries, although reproducibility is poor using the uncoated silica capillary. To improve run-to-run reproducibility, silanized capillary was used and various internal standards were also tested. Relative and normalized migration times of primary amine terminated PAMAM dendrimers were then determined using 2,3-diaminopyridine (2,3-DAP) as an internal standard. Using silanized capillaries and internal standards, the relative and normalized migration times are fully reproducible and comparable between runs. Apparent dimensionless electrophoretic mobilities were determined and the results were compared to theoretical calculations. It is concluded that for PAMAMs a complex separation mechanism has to be considered in CE, where the movement of the ions is due to the electric field, but the separation is rather the consequence of the adsorption/desorption equilibria on the capillary wall ("electrokinetic capillary chromatography"). The described method may be used for quality control and may serve as an effective technique to analyze polycationic PAMAM dendrimers and their derivatives with different surface modifications.

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Section: Introductionmentioning

confidence: 99%

Capillary electrophoresis of polycationic poly(amidoamine) dendrimers

et al. 2005

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“…It is relatively easy to synthesize the dendrimers that carry dopant atoms such as phosphorus, sulfur, nitrogen or even iron [74] in addition to carbon, oxygen, and hydrogen. Therefore, dendrimers can be potentially used as precursor molecules for monolayer doping.…”

Section: Structural Features Of Dendrimers and Dendrimer Monolayersmentioning

confidence: 99%

Dendrimers as Dopant Atom Carriers

Wu¹,

Dan²

2018

Dendrimers - Fundamentals and Applications

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Properties of modern semiconducting transistors and future electron or quantum devices are essentially determined by single dopant atoms. How to precisely control the individual dopant position is one of the key factors to advance these technologies. In this chapter, we first briefly introduce the research progress in single dopant devices. To fabricate single dopant devices at large scale, we then overview our previous propose to control the locations of single dopants by self-assembly of large molecules (polyglycerols) with each carrying one dopant atom. The synthesis process, doping properties, and challenges of the molecular doping technique will be thoroughly elaborated before we conclude this chapter.

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“…[11] Despite, the several high tech. applications of dendrimers like chemical sensors, [12,13] catalysts, [14] molecular devices [15,16] and chemodelivery in biology, [17] these new classes of materials have failed to make any commercial impact. Moreover, as compared with organic hyperbranched polymers and dendrimers, inorganic hyperbranched polymers and dendrimers have been less studied.…”

Section: Introductionmentioning

confidence: 99%

Studies on the synthesis and thermal properties of alkoxysilane‐terminated organosilicone dendrimers

Saxena

Bisaria

Saxena

2010

Applied Organom Chemis

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Silicone core dendrimers bearing terminal dialkoxy and trialkoxy silane groups were prepared in a three-step synthesis. Initially, the Si-H terminated multifunctional silicone dendrimer, i.e. tetrakis(dimethylsiloxy)silane, was prepared by the reaction of tetraethoxysilane and dimethylethoxysilane. Tetrakis(dimethylsiloxy)silane on reaction with allylglycidylether in the presence of Speier's catalyst under pressure (100 psi) yielded epoxy-terminated dendrimer in very high yield (95%). The epoxy-terminated dendrimer was reacted with aminopropylalkoxysilanes to yield the next-generation dendrimer bearing dialkoxy and trialkoxy silane groups. The dendrimers were characterized by the usual physico-chemical techniques, i.e. elemental analysis, FT-IR, 1 H, 13 C and 29 Si NMR. Thermal studies (Thermogravimetric analysis and Thermomechanical analysis) of the alkoxy terminated dendrimers and its cured products were also carried out.

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Ferrocene end-capped dendrimer: synthesis and application to CO gas sensor

Cited by 54 publications

References 17 publications

Capillary electrophoresis of polycationic poly(amidoamine) dendrimers

Capillary electrophoresis of polycationic poly(amidoamine) dendrimers

Dendrimers as Dopant Atom Carriers

Studies on the synthesis and thermal properties of alkoxysilane‐terminated organosilicone dendrimers

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