C60-containing polymer complexes: Complexation between multifunctional 1-(4-methyl)piperazinyl-fullerene orN-[(2-piperidyl)ethyl]aminofullerene and proton-donating polymers

Goh, S. H.; Lee, S. Y.; Lu, Zhihua; Huan, C. H. A.

doi:10.1002/1521-3935(20000601)201:10<1037::aid-macp1037>3.0.co;2-7

Cited by 22 publications

(8 citation statements)

References 19 publications

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“…The synthesis of 1-(4-methyl)-piperazinyl fullerene (MPF) was carried out following a published method . As illustrated in Scheme , typically 15 mL of 1-methylpiperazine was added to a solution of 500 mg of C 60 in 150 mL of chlorobenzene (C 60 was not totally dissolved yet) in a three-neck round-bottomed flask.…”

Section: Methodsmentioning

confidence: 99%

Assembly of Gold Nanoparticles Mediated by Multifunctional Fullerenes

et al. 2007

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The understanding of the interparticle interactions of nanocomposite structures assembled using molecularly capped metal nanoparticles and macromolecular mediators as building blocks is essential for exploring the fine-tunable interparticle spatial and macromolecular properties. This paper reports the results of an investigation of the chemically tunable multifunctional interactions between fullerenes (1-(4-methyl)-piperazinyl fullerene, MPF) and gold nanoparticles. The interparticle spatial properties are defined by the macromolecular and multifunctional electrostatic interactions between the negatively charged nanoparticles and the positively charged fullerenes. In addition to characterization of the morphological properties, the surface plasmon resonance band, dynamic light scattering, and surface-enhanced Raman scattering (SERS) properties of the MPF-mediated assembly and disassembly processes have been determined. The change of the optical properties depends on the pH and electrolyte concentrations. The detection of the Raman-active vibration modes (Ag(2) and Hg(8)) of C60 and the determination of their particle size dependence have demonstrated that the adsorption of MPF on the nanoparticle surface in the MPF-Au nm assembly is responsible for the SERS effect. These findings provide new insights into the delineation between the interparticle interactions and the nanostructural properties for potential applications of the nanocomposite materials in spectroscopic and optical sensors and in controlled releases.

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Section: Methodsmentioning

confidence: 99%

Assembly of Gold Nanoparticles Mediated by Multifunctional Fullerenes

et al. 2007

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“…The strong ionic interactions between the multifunctional C 60 derivatives 264 , 265 , and 266 , see chemical structures in Chart , synthesized by nucleophilic addition of fullerene with amines, led Goh and co-workers to claim formation of supramolecular complexes with a number of H-donating polymers such as poly(styrenesulfonic acid) (PSSA), poly(vinylphosphonic acid) (PVPA), PAA, or PMA.…”

Section: Supramolecular Polymersmentioning

confidence: 99%

Fullerene Polymers: Synthesis and Properties

2006

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“…Nevertheless, within the rich fullerene chemistry there is a very appropriate reaction employing simple and common reagents: organic amines. It was discovered more than a decade ago. , Both primary and secondary amines (which are all neutral nucleophiles) add onto C 60 at room temperature by reacting with fullerenes dissolved in liquid amines or in their solutions in dimethylformamide, dimethyl sulfoxide, chlorobenzene, and so forth. − The reaction stoichiometry varies significantly depending on the size of the amine reactant molecule. For smaller amine molecules such as 2-methylaziridine, the average amine/C 60 ratio can reach 10:1 .…”

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confidence: 99%

Direct Solvent-Free Amination of Closed-Cap Carbon Nanotubes: A Link to Fullerene Chemistry

et al. 2004

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We attempted the direct solvent-free amination of closed caps of multiwalled carbon nanotubes (MWNTs) with octadecylamine (ODA), which is essentially similar to the amination of spherical fullerenes. Thermogravimetric analysis revealed a relatively high content of organics in the product of derivatization (ODA-MWNTs), suggesting that a large ODA fraction is distributed over MWNT sidewalls through chemical attachment. This was confirmed by high-resolution transmission electron microscopy observations. Quantum chemical calculations showed that the presence of pyracylene units in the closed caps is not crucial for the amine addition, although the site specificity of the reaction does depend on the mutual position of five-membered rings. If the caps contain pyracylene units, then the addition preferentially takes place on their 6,6 bonds; if they do not, then the preferential reaction sites are C−C bonds of the pentagons. Whereas ideal nanotube sidewalls composed of solely benzene rings were found to be inert with respect to amines, the real nanotube sidewalls must contain numerous reactive five-membered rings as defects. ODA-MWNTs exhibited enhanced dispersibility/solubility in propanol. The proposed amination reaction is the most direct link between carbon nanotube and fullerene chemistry, contrary to all derivatization methods designed previously.

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C60-containing polymer complexes: Complexation between multifunctional 1-(4-methyl)piperazinyl-fullerene orN-[(2-piperidyl)ethyl]aminofullerene and proton-donating polymers

Cited by 22 publications

References 19 publications

Assembly of Gold Nanoparticles Mediated by Multifunctional Fullerenes

Assembly of Gold Nanoparticles Mediated by Multifunctional Fullerenes

Fullerene Polymers: Synthesis and Properties

Direct Solvent-Free Amination of Closed-Cap Carbon Nanotubes: A Link to Fullerene Chemistry

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