title: A two-stage enzymatic synthesis of conductive poly(3,4-ethylenedioxythiophene).
abstract: The conductive polymer, poly(3,4-ethylenedioxythiophene) (PEDOT), possesses attractive properties that show the potential applications in many fields. In this study, we have proposed a two-stage enzymatic synthesis of conductive PEDOT. Horseradish peroxidase (HRP) acts as the catalyst to promote the generation of EDOT free radicals followed by the polymerization under the room temperature in the presence of poly(sodium 4-styrenesulfonate) (PSS), then a mild heating process is employed for further chain extension. The final PEDOT:PSS is purified with n-butanol and subjected to various characterizations, which indicate that PEDOT with enzymatic approach exhibits a similar molecular structure to that with chemical method. However, the enzymatically synthesized PEDOT:PSS demonstrates advantages, such as stable integration of PEDOT with PSS and better electrochemical properties, suggesting its future prospective applications.
authors.affiliation: Chemical and Biochemical Engineering, Xiamen University, Xiamen, PR China.
authors.forename: Jing
authors.initials: J
authors.lastname: Wang
authors.forename: Bai-Shan
authors.initials: BS
authors.lastname: Fang
authors.forename: Kuang-Ying
authors.initials: KY
authors.lastname: Chou
authors.forename: Chien-Chung
authors.initials: CC
authors.lastname: Chen
authors.forename: Yesong
authors.initials: Y
authors.lastname: Gu
mesh_terms: D001709:Biotechnology; D019086:Bridged Bicyclo Compounds, Heterocyclic / Q000737:chemistry / Q000378:metabolism*; D002384:Catalysis; D004553:Electric Conductivity; D055664:Electrochemical Techniques; D006735:Horseradish Peroxidase / Q000378:metabolism; D006358:Hot Temperature; D015394:Molecular Structure; D011108:Polymers / Q000737:chemistry / Q000378:metabolism*; D011137:Polystyrenes / Q000737:chemistry / Q000378:metabolism; D013053:Spectrophotometry; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman
chemical_list: D019086:Bridged Bicyclo Compounds, Heterocyclic; D011108:Polymers; D011137:Polystyrenes; C121383:poly(3,4-ethylene dioxythiophene); C003321:polystyrene sulfonic acid; D006735:Horseradish Peroxidase
keywords: Conductive poly(3,4-ethylenedioxythiophene); Enzymatic polymerization; Poly(sodium 4-styrenesulfonate)