Optical properties of polyimides films treated by nanosecond pulsed electrical discharges in water

Ion Sava, Angela Kruth, Juergen F. Kolb, Camelia Miron

Research output: Contribution to journalReview article

1 Citation (Scopus)

Abstract

Fluorinated polyimide films containing cobalt chloride based on hexafluoroisopropylidenediphthalic dianhydride and 4,4′-diamino-3,3′-dimethyl diphenylmethane were treated by nanosecond pulsed electrical discharges generated in distilled water. The polyimide films have been characterized by Fourier transform infrared (FTIR) spectra and contact angle measurements, optical transmission spectroscopy, and fluorescence spectroscopy. Significant changes in some intrinsic fluorescence features, such as the intensity and position of the emission peak, have been observed during exposure to water plasma. These effects have been considered to correlate with the development of specific chemical interactions between the liquid and the macromolecules, including the formation of hydrogen bridges. A slight increase in surface hydrophobicity was observed after plasma treatment. FTIR spectra showed a decrease in the intensity of the absorption band and an opening of the imide ring, depending on the treatment time.

Original languageEnglish
Article number0102BF
JournalJapanese Journal of Applied Physics
Volume57
Issue number1
DOIs
Publication statusPublished - 2018 Jan 1
Externally publishedYes

Fingerprint

polyimides
Polyimides
Fourier transforms
infrared spectra
Optical properties
Infrared radiation
Plasmas
optical properties
fluorescence
imides
Fluorescence spectroscopy
Hydrophobicity
Angle measurement
hydrophobicity
Light transmission
Macromolecules
optical measurement
macromolecules
water
spectroscopy

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Optical properties of polyimides films treated by nanosecond pulsed electrical discharges in water. / Sava, Ion; Kruth, Angela; Kolb, Juergen F.; Miron, Camelia.

In: Japanese Journal of Applied Physics, Vol. 57, No. 1, 0102BF, 01.01.2018.

Research output: Contribution to journalReview article

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