Disclosed is a polythiophenes having high electrical conductivity, excellent solubility, long-term stability, excellent processability and high regioregularity. Specifically disclosed is regioregular polythiophene represented by chemical formula (1)
wherein R
1
— represents a 4-substituent including an alkyl having 1 to 20 carbon atoms; R
2
—O— represents a 3-substituent including an alkyl having 1 to 20 carbon atoms; and n represents such a numeral value that the number average molecular weight of the regioregular polythiophene becomes 200 to 1,000,000, wherein the regioregularity of the Head-Tail repeating structure is at least 98%.
本发明涉及一种具有高电导率、优异可溶性、长期稳定性、优异加工性和高区域规整性的聚
噻吩。具体揭示了由
化学式(1)表示的区域规整聚
噻吩,其中R1-表示包括碳数为1至20的烷基的4-取代基;R2-O-表示包括碳数为1至20的烷基的3-取代基;n表示这样一个数字值,使区域规整聚
噻吩的数均分子量为200至1,000,000,其中头-尾重复结构的区域规整性至少为98%。