scholarly journals Fullerenolates: metallated polyhydroxylated fullerenes with potent anti-amyloid activity

2011 ◽  
Vol 9 (16) ◽  
pp. 5714 ◽  
Author(s):  
A. G. Bobylev ◽  
A. B. Kornev ◽  
L. G. Bobyleva ◽  
M. D. Shpagina ◽  
I. S. Fadeeva ◽  
...  
Keyword(s):  
Polyhydroxylated Fullerenes

Elastomeric Conductive Ipn From Polyaniline And Fullerene-Based Networks

1995 ◽  
Vol 413 ◽  
Author(s):  
Lee Y. Wang ◽  
Long Y. Chiang ◽  
C. S. Kuo ◽  
J. G. Lin ◽  
C. Y. Huang
Keyword(s):  
Ammonium Persulfate ◽  
Cross Linking ◽  
Synthetic Method ◽  
Near Surface ◽  
Bulk Properties ◽  
Ambient Temperatures ◽  
Polyurethane Networks ◽  
New Material ◽  
Conductive Polyaniline ◽  
Polyhydroxylated Fullerenes

ABSTRACTPolyhydroxylated fullerenes were utilized as an efficient hyper cross-linking agent in the synthesis of polyurethane networks. The resultant elastomers exhibited greatly enhanced thermal stability in comparison with those of the corresponding linear polyurethane and analogous elastomers, which were cross-linked by 1,1,1- tris(hydroxymethyl)ethane. A synthetic method leading to the preparation of a thin layer of conductive polyaniline/polyurethane IPN at the near surface of a fullerenol- based elastomeric substrate was demonstrated, using aqueous ammonium persulfate as an oxidizing agent in the presence of HCI. This new material exhibits a conductivity of 2.0 S/cm at ambient temperatures with the retention of most bulk properties of the parent elastomer, such as elongation and tensile strength at break.

Polyhydroxylated fullerenes: An efficient support for Pt electrocatalysts toward ethanol oxidation

2020 ◽  
Vol 878 ◽  
pp. 114663
Author(s):  
Caio V.S. Almeida ◽  
Luis E. Almagro ◽  
Edmundo S. Valério Neto ◽  
Julieta Coro ◽  
Margarita Suárez ◽  
...  
Keyword(s):  
Ethanol Oxidation ◽  
Pt Electrocatalysts ◽  
Polyhydroxylated Fullerenes

Fractal Structure of Polyhydroxylated Fullerenes in Water Solutions

1999 ◽  
Vol 7 (4) ◽  
pp. 599-608 ◽  
Author(s):  
U-Ser Jeng ◽  
W.-J. Liu ◽  
Tsang-Lang Lin ◽  
Lee Y. Wang ◽  
Long Y. Chiang
Keyword(s):  
Fractal Structure ◽  
Water Solutions ◽  
Polyhydroxylated Fullerenes

Synthesis of New Polyhydroxylated Fullerenes

2005 ◽  
Vol 402 (1-3) ◽  
pp. 75-76
Author(s):  
E. G. Atovmyan ◽  
E. R. Badamshina ◽  
M. P. Gafurova ◽  
A. A. Grishchuk ◽  
Ya. I. Estrin
Keyword(s):  
Polyhydroxylated Fullerenes

Polyhydroxylated C60 as an Hypercross-Linking Agent

1994 ◽  
Vol 359 ◽  
Author(s):  
Long Y. Chiang ◽  
Lee Y. Wang ◽  
Rong-Shen Wu ◽  
Kuo-Huang Hsieh
Keyword(s):  
Mechanical Properties ◽  
Ambient Temperature ◽  
Fullerene Derivatives ◽  
Polyurethane Networks ◽  
Thermal Mechanical Properties ◽  
Naoh Solution ◽  
Polyhydroxylated Fullerenes ◽  
Hydrolysis Of ◽  
Tetramethylene Oxide

ABSTRACTPolyhydroxylated fullerene derivatives (fullerenols) were utilized as an efficient hypercross-linking agent for the synthesis of elastic poly(tetramethylene oxide)-based polyurethane networks with excellent thermal mechanical properties. Polyhydroxylated fullerenes were synthesized from the hydrolysis of polycyclosulfated fullerene derivatives in the presence of water at 85-90 °C or in aqueous NaOH solution at ambient temperature.

Novel Oxidative Nucleophilic Chemistry Enroute to The Synthesis of C60 Fullerols

1993 ◽  
Vol 328 ◽  
Author(s):  
Long Y. Chiang ◽  
Lee Y. Wang ◽  
John W. Swirczewski
Keyword(s):  
Sulfuric Acid ◽  
Ambient Temperature ◽  
Oxidation Reaction ◽  
Chemical Structure ◽  
High Yield ◽  
Radical Intermediates ◽  
Naoh Solution ◽  
Polyhydroxylated Fullerenes ◽  
Hydrolysis Of ◽  
Sulfate Species

ABSTRACTWe have demonstrated a novel cyclosulfation chemistry for the functionalization of C60 Molecules and a new route to the synthesis of fullerol. The cyclosulfation reaction of C60 was performed in neat fuming sulfuric acid at 55–60 °C under N2. Hydrolysis of these derivatives in the presence of water at 85–90 °C or in aqueous NaOH solution at ambient temperature gave the corresponding polyhydroxylated fullerenes (fullerols) in high yield. Various spectroscopie methods were used to resolve the chemical structure of fullerol. An average of 10 to 12 hydroxyl addends was found in fullerols that can be correlated to the structure of polycyclosulfated fullerene precursors containing 5 to 6 cyclosulfate units. The cyclosulfation chemistry is, presumably, initiated by an one-electron oxidation reaction on C60 Molecules, followed by the attack of nucleophilic anionie sulfate species onto the resulting cationic C60 radical intermediates. Further electron oxidation and intramolecular cyclization of the resulting hydrogen sulfated C60 yielded the desired polycyclosulfated C60 products.

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