Electrical conduction of polyimide films prepared from polyamic acid (PAA) and pre-imidized polyimide (PI) solution

T. Y. Kim, W. J. Kim, T. H. Lee, J. E. Kim, Ho Gyu Yoon, Kwang Suck Suh

Research output: Contribution to journalArticle

Abstract

Electrical conduction characteristics in two different polyimide films prepared by the imidization of polyamic acid (PAA) and pre-imidized polyimide (Pl) solution were investigated. It is found that the current density of the polyimide film from PAA was higher than that of the polyimide film from Pl at the same electric field, even though the conduction mechanism in both polyimide films follows the ionic hopping model. The hopping distance was calculated to be 2.8 nm for PAA type and 3.2 nm for Pl type polyimide film. It is also found that the decay rate of the residual electrostatic charges on the polyimide films becomes faster in the PAA type than in the Pl type polyimide film.

Original languageEnglish
Article number077
JournalE-Polymers
Publication statusPublished - 2008 Jun 18

Fingerprint

polyimides
Polyimides
conduction
acids
Acids
polyamic acid
electrostatic charge
decay rates
Electrostatics
Current density
Electric fields
current density
electric fields

ASJC Scopus subject areas

  • Polymers and Plastics
  • Physical and Theoretical Chemistry
  • Process Chemistry and Technology

Cite this

Electrical conduction of polyimide films prepared from polyamic acid (PAA) and pre-imidized polyimide (PI) solution. / Kim, T. Y.; Kim, W. J.; Lee, T. H.; Kim, J. E.; Yoon, Ho Gyu; Suh, Kwang Suck.

In: E-Polymers, 18.06.2008.

Research output: Contribution to journalArticle

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AU - Lee, T. H.

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AU - Yoon, Ho Gyu

AU - Suh, Kwang Suck

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AB - Electrical conduction characteristics in two different polyimide films prepared by the imidization of polyamic acid (PAA) and pre-imidized polyimide (Pl) solution were investigated. It is found that the current density of the polyimide film from PAA was higher than that of the polyimide film from Pl at the same electric field, even though the conduction mechanism in both polyimide films follows the ionic hopping model. The hopping distance was calculated to be 2.8 nm for PAA type and 3.2 nm for Pl type polyimide film. It is also found that the decay rate of the residual electrostatic charges on the polyimide films becomes faster in the PAA type than in the Pl type polyimide film.

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