Synthesis and electropolymerization of 3-arylthieno[3,2-b]thiophenes and triphenylamine based comonomers

Electrochemical polymerizations of thieno[3,2-b]thiophenes (TT), named PhTTTPA, CH3OPhTTTPA and CNPhTTTPA, possessing pH, 4-CH3OPh, 4-CNPh and triphenylamine (TPA) units, were performed and their corresponding polymers P[PhTTTPA], P[CH3OPhTTTPA] and P[CNPhTTTPA] were obtained, respectively. The poly...

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Published inElectrochimica acta Vol. 389; p. 138688
Main Authors Topal, S., Isci, R., Sezer, E., Ozturk, T., Ustamehmetoglu, B.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.09.2021
Elsevier BV
Subjects
Cyanophenyl
Electrochemical impedance spectroscopy
Electrochemical polymerization
Methoxyphenyl
Oxidation
Phenyl
Polymer films
Polymerization
Thieno[3,2-b]thiophene
Thiophenes
Triphenylamine
Phenyl
Methoxyphenyl
Cyanophenyl
Electrochemical polymerization
Triphenylamine
Thieno[3,2-b]thiophene
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Summary:Electrochemical polymerizations of thieno[3,2-b]thiophenes (TT), named PhTTTPA, CH3OPhTTTPA and CNPhTTTPA, possessing pH, 4-CH3OPh, 4-CNPh and triphenylamine (TPA) units, were performed and their corresponding polymers P[PhTTTPA], P[CH3OPhTTTPA] and P[CNPhTTTPA] were obtained, respectively. The polymer films were characterized by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and spectroelectrochemical measurements, which suggested that while the presence of strong electron donating TPA unit provided them with better electrochemical reversibility, strong electron withdrawing -CN group lowered the oxidation potential of P[CNPhTTTPA] along with enhancement of its charge storage character.
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2021.138688