1 research outputs found
Effects of Substituent on Binaphthyl Hinge-Containing Conductive Polymers
Conductive polymers containing hinged 1,1′-binaphthyl
were
synthesized. Their conformational flexibility around the 1,1′
C–C bonds was found to vary with the substituents at the 2,2′-positionshydroxy,
linear alkyloxy, and macrocyclic alkyloxy groups were compared. Macrocyclic
alkyloxy groups appeared to immobilize the binaphthyl. The connection
patterns of electroactive oligothiophenes to the binaphthyl groups
were also investigated with 6,6′- and 7,7′-attachments.
The substituents binaphthyl polymers were examined using cyclic voltammetry, <i>in situ</i> conductivity measurements, and spectroelectrochemistry.
Their electronic properties were found to vary greatly with the substituents
and their connectivity. Binaphthyl polymer with hydroxyls and 3,4-ethylenedioxythiophenes
exhibited interesting charge-trapping properties. 7,7′-Substitution
led to intrachain interactions, which were promoted by the presence
of linear alkyl chains. The observed properties give binaphthyl hinge-containing
conductive polymers potential applicability in chiral electroactive
sensors, polymer actuators, and electrochromic and optoelectronic
devices