| 摘要 |
The present invention relates to a process for exfoliating graphite in carbonaceous materials facilitated by a Diels-Alder reaction, and the applications of same, in particular for producing electronic or microelectronic components such as transparent conductive electrodes. The inventive method comprises a Diels-Alder reaction between a material containing graphite and an anthrone compound represented by formula (I), wherein X, R1, R2, R3 and R4 are as defined in the description, in an organic solvent, in the presence of a base, and subjected to sonication, ball-milling and/or high-shear mixing, at a temperature of between 15° C. and 65° C., to obtain the corresponding graphene Diels-Alder adduct. |
| 主权项 |
1. A process for the exfoliation of a graphite-containing material, comprising a Diels-Alder reaction between the graphite-containing material and a compound of formula (I): wherein: X represents O or S; R1, R2, R3 and R4 independently represent a hydrogen atom, —NRARB, —N+RARBRC, —OR, —CO2M or —SO3M; or else R1 and R2, on the one hand, and R3 and R4, on the other hand, together form an optionally substituted unsaturated C6 cycloalkyl group to result in a pentacenone-type compound of formula (II) having the following structure: wherein: X represents O or S; R′1, R′2, R′3 and R′4 independently represent a hydrogen atom, —NRARB, —N+RARBRC, —OR, —CO2M or —SO3M; where M represents a hydrogen atom or an alkali metal atom; and each occurrence of R, RA, RB and RC independently represents a hydrogen atom or a linear or branched C1 to C16 alkyl; wherein the R radical can also represent, independently for each occurrence of R, a polyethylene glycol radical of formula: wherein n represents an integer from 1 to 6, preferably from 1 to 3, preferably 3; in an organic solvent, in the presence of a base, and under sonication, ball-milling and/or high-shear mixing, at a temperature of between 15° C. and 65° C., to obtain the corresponding graphene Diels-Alder adduct. |
