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Digitale Medien

Chemical modification of carbon fibres by esterification —optimization of fibre pretreatment (1989)

Jannakoudakis, P. D. ; Jannakoudakis, A. D. ; Theodoridou, E. ; [weitere]

Springer

Journal of applied electrochemistry 19 (1989), S. 341-344

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Details

ISSN: 1572-8838

Quelle: Springer Online Journal Archives 1860-2000

Thema: Chemie und Pharmazie , Elektrotechnik, Elektronik, Nachrichtentechnik

Notizen: Abstract Electrochemically oxidized PAN-based carbon fibres were modified by attachment of anm-dinitrobenzene group. Chemical modification was performed by esterification of the −OH groups of the oxidized carbon surface with 3,5-dinitrobenzoyl chloride. The higher modification extent was achieved in the case of d.c. oxidized carbon fibres, which bear a large number of −OH groups. The attachment of the dinitrobenzene species was supported by cyclic voltammetry carried out on the modified carbon fibre electrodes in aqueous solutions. The quantity of attachedm-dinitrobenzene groups was determined polarographically, after hydrolysis of the esteric bonds; it corresponds to a charge density of ca 0.2 kAh kg−1 carbon fibres, which is of the order of magnitude of battery electrodes.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01015233

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