PI-CONJUGATED LOW-BAND-GAP COPOLYMERS CONTAINING BENZOTRIAZOLE UNITS
申请人:Po' Riccardo
公开号:US20110319573A1
公开(公告)日:2011-12-29
The present invention relates to an alternating or statistical conjugated copolymer comprising: at least one benzotriazole unit B having general formula (Ia) or (Ib): wherein the group R is selected from alkyl, aryl, acyl or thioacyl groups, possibly substituted; at least one conjugated structural unit A, wherein each unit B is connected with at least one unit A in any of the positions 4, 5, 6 or 7, preferably in positions 4 or 7.