Synthesis and characterization of new optically active poly(amide-imide)s containing 1,3,4-oxadiazole moiety in the main chain

2009 ◽  
Vol 65 (4) ◽  
pp. 319-332 ◽  
Author(s):  
Khalil Faghihi ◽  
Hassan Moghanian
Keyword(s):  
Main Chain ◽  
Optically Active ◽  
Synthesis And Characterization

Synthesis of A 1,1′-Binaphthyl Based Main Chain Chiral Conjugated Polymer

1995 ◽  
Vol 413 ◽  
Author(s):  
Qiao-Sheng Hu ◽  
Dilrukshi Vitharana ◽  
Lin Pu
Keyword(s):  
Absorption Spectrum ◽  
Boronic Acid ◽  
Conjugated Polymer ◽  
Main Chain ◽  
Repeat Unit ◽  
Suzuki Coupling ◽  
Optically Active ◽  
Synthesis And Characterization ◽  
Palladium Catalyzed

ABSTRACTThe synthesis and characterization of a 1,1′-binaphthyl based main chain chiral conjugated polymer, R-9, is described. The polymer is prepared from the palladium-catalyzed Suzuki coupling of an optically active binaphthyl molecule, (R)-2,2′-dihexyloxy-1,1′-binaphthyl-6,6′- diboronic acid, R-4 with 1,4-bis(p-bromostyryl)benzene (E:Z = 1:1.2), 8. The Suzuki coupling of 8 with 6-neopentyloxynaphthyl-2-boronic acid, 1 1, leads to the formation of a conjugated molecule 10. The structure of this molecule represents the repeat unit of R-9. The electronic absorption spectrum of 10 demonstrates that the degree of conjugation in the chiral conjugated polymer is almost the same as that of its repeat unit.

Sign in / Sign up

Export Citation Format

Share Document