... Đ 2011 The Chemical Society of Japan Chem ... 2011, 40, 992994 ... of Polymer-3a and Polymer-3b resem- ble those of regioregular ģ-conjugated aromatic polymers with long alkyl side chains,13 including the regioregular alternating copolymer of Tz(R) and Th (see above).9 The ...