Conductivity shift of polyethylenedioxythiophenes in aqueous solutions from side-chain charge perturbation

Emril Mohamed Ali; Eric Assen B. Kantchev; Hsiao Hua Yu; Jackie Y. Ying

doi:10.1021/ma0708949

Conductivity shift of polyethylenedioxythiophenes in aqueous solutions from side-chain charge perturbation

Emril Mohamed Ali, Eric Assen B. Kantchev, Hsiao Hua Yu^*, Jackie Y. Ying

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

42 Scopus citations

Abstract

Shifting of the ECP's conductivity profile in aqueous buffers by modulating the negative charge density in the polymer matrix through side-chain functional groups was investigated. EDOT's functionalized with carboxylic acid groups were synthesized from the known hydroxymethyl-EDOT incorporating either an ester or an ether spacer. Electropolymerization of all three monomers were performed in CH₃CN solution containing 10 mM of the respective monomer and 0.1 M of tetrabutylammonium hexafluorophosphate as supporting electrolyte. All three side-chain functionalized polymers displayed similar intrinsic conductivities as the electropolymerized PEDOT. It was observed that the current passing though electrodes by applying a potential of 0.65 V was reduced by over 90% within 10 seconds when the pH of the immersed solution changed from 5 to 10 with the addition of aqueous ammonia solution.

Original language	English
Pages (from-to)	6025-6027
Number of pages	3
Journal	Macromolecules
Volume	40
Issue number	17
DOIs	https://doi.org/10.1021/ma0708949
State	Published - 21 Aug 2007
Externally published	Yes

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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title = "Conductivity shift of polyethylenedioxythiophenes in aqueous solutions from side-chain charge perturbation",

abstract = "Shifting of the ECP's conductivity profile in aqueous buffers by modulating the negative charge density in the polymer matrix through side-chain functional groups was investigated. EDOT's functionalized with carboxylic acid groups were synthesized from the known hydroxymethyl-EDOT incorporating either an ester or an ether spacer. Electropolymerization of all three monomers were performed in CH3CN solution containing 10 mM of the respective monomer and 0.1 M of tetrabutylammonium hexafluorophosphate as supporting electrolyte. All three side-chain functionalized polymers displayed similar intrinsic conductivities as the electropolymerized PEDOT. It was observed that the current passing though electrodes by applying a potential of 0.65 V was reduced by over 90\% within 10 seconds when the pH of the immersed solution changed from 5 to 10 with the addition of aqueous ammonia solution.",

author = "Ali, \{Emril Mohamed\} and Kantchev, \{Eric Assen B.\} and Yu, \{Hsiao Hua\} and Ying, \{Jackie Y.\}",

year = "2007",

month = aug,

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doi = "10.1021/ma0708949",

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journal = "Macromolecules",

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TY - JOUR

T1 - Conductivity shift of polyethylenedioxythiophenes in aqueous solutions from side-chain charge perturbation

AU - Ali, Emril Mohamed

AU - Kantchev, Eric Assen B.

AU - Yu, Hsiao Hua

AU - Ying, Jackie Y.

PY - 2007/8/21

Y1 - 2007/8/21

N2 - Shifting of the ECP's conductivity profile in aqueous buffers by modulating the negative charge density in the polymer matrix through side-chain functional groups was investigated. EDOT's functionalized with carboxylic acid groups were synthesized from the known hydroxymethyl-EDOT incorporating either an ester or an ether spacer. Electropolymerization of all three monomers were performed in CH3CN solution containing 10 mM of the respective monomer and 0.1 M of tetrabutylammonium hexafluorophosphate as supporting electrolyte. All three side-chain functionalized polymers displayed similar intrinsic conductivities as the electropolymerized PEDOT. It was observed that the current passing though electrodes by applying a potential of 0.65 V was reduced by over 90% within 10 seconds when the pH of the immersed solution changed from 5 to 10 with the addition of aqueous ammonia solution.

AB - Shifting of the ECP's conductivity profile in aqueous buffers by modulating the negative charge density in the polymer matrix through side-chain functional groups was investigated. EDOT's functionalized with carboxylic acid groups were synthesized from the known hydroxymethyl-EDOT incorporating either an ester or an ether spacer. Electropolymerization of all three monomers were performed in CH3CN solution containing 10 mM of the respective monomer and 0.1 M of tetrabutylammonium hexafluorophosphate as supporting electrolyte. All three side-chain functionalized polymers displayed similar intrinsic conductivities as the electropolymerized PEDOT. It was observed that the current passing though electrodes by applying a potential of 0.65 V was reduced by over 90% within 10 seconds when the pH of the immersed solution changed from 5 to 10 with the addition of aqueous ammonia solution.

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U2 - 10.1021/ma0708949

DO - 10.1021/ma0708949

M3 - Article

AN - SCOPUS:34548240723

SN - 0024-9297

VL - 40

SP - 6025

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JO - Macromolecules

JF - Macromolecules

IS - 17

ER -

Conductivity shift of polyethylenedioxythiophenes in aqueous solutions from side-chain charge perturbation

Abstract

ASJC Scopus subject areas

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