supported by the National Natural Science Foundation of China(No.29974026);the Natural Science Foundation of Henan Province(No.0211021100);the Education Department Foundation of Henan Province(No.20021500004)
This work was supported by the National Natural Science Foundation of China(No.29974026);the Natural Science Foundation of Henan Province(No.0211021100);the Education Department Foundation of Henan Province(No.20021500004).
A novel series of liquid crystalline copolyesters with T-shaped two-dimensional mesogenic unit and crown ether cycle of cis-4,4′-bis(4-hydroxyphenylazo)dibenzo-18-crown-6 was prepared via solution condensation polyme...