POLYMERIC PRECURSORS FOR PRODUCING GRAPHENE NANORIBBONS AND SUITABLE OLIGOPHENYLENE MONOMERS FOR PREPARING THEM

摘要

122140222331402a2b2a2bThe invention relates to oligophenylene monomers of general formula I wherein R is H halogene OH NH CN NO or a linear or branched saturated or un saturated C C hydrocarbon residue which can be substituted 1 to 5 fold with halogene (F Cl Br I) OH NH CN and/or NO and wherein one or more CH groups can be replaced by O S C(O)O O C(O) C(O) NH or NR wherein R is an optionally substituted C C hydrocarbon residue or an optionally substituted aryl alkylaryl alkoxyaryl alkanoyl or aroyl residue; R and R are H or optionally one or more of the pairs of adjacent R /R is joined to form a single bond in a six membered carbocycle; m is an integer of from 0 to 3; n is 0 or 1; and X is halogene or trifluoromethylsulfonate and Y is H; or X is H and Y is halogene or trifluoromethylsulfonate. The invention further relates to polymeric precursors as well as methods for preparing graphene nanoribbons from the oligophenylene monomers and the polymeric precur sors.