NDLI: Synthesis of water-soluble polyhydroxylated C/sub 60/ derivatives and their uses in polymer network

Content Provider	IEEE Xplore Digital Library
Author	Chiang, L.Y. Wang, L.Y. Jung-Sheng Wu Sheng-Mao Tseng Kuo-Huang Hsieh
Copyright Year	1994
Description	Author affiliation: National Taiwan University (Chiang, L.Y.)
Abstract	Summary form only given. Fullerene molecules exhibit a high reactivity towards both nucleophilic substitutions and electronic reductions. Unlike most of highly conjugated aromatics, they are relatively inert to the electronic oxidation showing a remarkable stability even under doping with arsenic pentafluoride at solid state. We demonstrated that the reactivity of electrophilic substitution on fullerenes can be significantly enhanced. We outline methods for the preparation of polyhydroxylated fullerene derivatives through the reaction of fullerenes with electrophilic reagents. The synthetic methods include the aqueous acid chemistry and the nitronium chemistry for the conversion of fullerenes to fullerols. Structure of this type of fullerols was characterized to consist of hemi-ketal functions linked with an enol ether in addition to tertiary hydroxy groups. Novel synthesis of fullerols involves the hydrolysis of polysulfated fullerene precursors, which were prepared from the reaction of C/sub 60/ with H/sub 2/SO/sub 4-/SO/sub 3/ under N/sub 2/ at 55-60/spl deg/C. These new fullerols with a simple chemical composition of C/sub 60/ carbons and hydroxy groups, exhibits significant improvement on the stability in acidic media and on the solubility in various organic solvents. Design and reaction conditions of fullerol with various reactive bifunctional monomers resulted in high performance polymeric derivatives with enhanced physical properties will be discussed.
Starting Page	218
Ending Page	218
File Size	95283
Page Count	1
File Format	PDF
DOI	10.1109/STSM.1994.835043
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-07-24
Publisher Place	Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Intelligent networks Chemistry Stability Chemical engineering Doping Network synthesis Oxidation Solid state circuits Organic chemicals Polymers
Content Type	Text
Resource Type	Article

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