Premium
Degradation of polyimide film under vacuum ultraviolet irradiation
Author(s) -
Peng Guirong,
Hao Wenguang,
Yang Dezhuang,
He Shiyu
Publication year - 2004
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.20920
Subject(s) - polyimide , irradiation , materials science , benzene , polymer , degradation (telecommunications) , x ray photoelectron spectroscopy , fourier transform infrared spectroscopy , photochemistry , polymer chemistry , condensation , ultraviolet , chemical engineering , chemistry , optoelectronics , composite material , organic chemistry , layer (electronics) , physics , telecommunications , computer science , nuclear physics , engineering , thermodynamics
The degradation of PI film irradiated with VUV in a wavelength of 5 to 200 nm is investigated. The results show that transparency of PI film decreases obviously after irradiation and more obviously for the film irradiated with VUV of higher intensity. In addition, the absorption line red‐shifts for the PI film. The XPS and FTIR analyses results indicate that decarbonylation and the condensation of the benzene group take place under the irradiation and that carbonification takes place under 100 VUV suns. The change of optical property could be attributed to the stabilizing of the conjugation group and as well as to the carbonification to some extent. The character of VUV on polymer degradation is discussed. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 94: 1370–1374, 2004