Polymer precursors for producing graphene nanoribbons and suitable oligophenylene monomers for their preparation

摘要

The present invention is a compound of the general formula I: wherein R1 is H, halogen, —OH, —NH 2, —CN, —NO 2, or halogen (F, Cl, Br, I), —OH, — A linear or branched saturated or unsaturated C1-C40 hydrocarbon residue, which may be substituted with NH2, -CN and / or -NO2, wherein one or more CH2 groups are —O—, —S—, —C (O) O—, —O—C (O) —, —C (O) —, —NH— or —NR 3 — can be replaced, where R 3 is , An optionally substituted C1-C40 hydrocarbon residue, or an optionally substituted aryl, alkylaryl, alkoxyaryl, alkanoyl or aroyl residue; R2a and R2b are H, or optionally 1 Pair or pairs of adjacent R2 / R2b combines to form a single bond in a six-membered carbocycle; m is an integer from 0 to 3; n is 0 or 1; X is a halogen or trifluoromethylsulfonate; And Y is H; or X is H and Y is halogen or trifluoromethylsulfonate). The invention further relates to a polymer precursor and a method for preparing graphene nanoribbons from oligophenylene monomer and polymer precursor.