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Structural changes of 80/20 poly(vinylidene fluoride–trifluoroethylene) copolymer induced by electron irradiation
Author(s) -
Li Weiping,
Guo Shishang,
Tang Yiwen,
Zhao Xingzhong
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.13503
Subject(s) - copolymer , irradiation , materials science , ferroelectricity , fluoride , fourier transform infrared spectroscopy , polymer chemistry , electron diffraction , phase (matter) , infrared spectroscopy , electron beam processing , diffraction , chemistry , dielectric , polymer , composite material , optics , organic chemistry , inorganic chemistry , physics , optoelectronics , nuclear physics
The electron irradiation effect on 80/20 poly(vinylidene fluoride–trifluoroethylene) [P(VDF–TrFE)] copolymers was studied by FTIR spectra and X‐ray diffraction. Infrared spectra showed decreasing intensity of bands at 1430, 1286, 846, and 505 cm −1 , the appearance and intensity increasing with irradiation doses of bands at 768, 601, and 1735 cm −1 , which revealed the conformational change after irradiation. The X‐ray diffraction patterns exhibited a decrease of volume fraction of ferroelectric phase and expansion of the lattice space. The electron‐irradiated P(VDF–TrFE) films showed structural changes and polar phase to nonpolar phase transformation. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 91: 2903–2907, 2004