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Preparation and electroactive phase adjustment of Ag-doped poly(vinylidene fluoride) (PVDF) films.

ABSTRACT: The crystallinities of Ag-doped poly(vinylidene fluoride) (PVDF) films were modified by removing Ag⁺ using a novel washing process, which allowed control of the ratio of γ- and β-phases. The polarity of the composite film without Ag⁺ removal through the washing process reached 98%, and the β-phase content in the total electroactive phase was increased to 61%, according to Fourier-transform infrared spectroscopy. When Ag⁺ were removed through a process involving several cycles of washing, filtering, drying, and re-dissolving, the highest ratio of the γ-phase was increased to 67%, 28% higher than that before washing. This showed that Ag⁺ induced β-phase formation while Ag nanoparticles induced γ-phase formation, and that the ratio of γ- and β-phases in PVDF composite films can be controlled to suit specific applications by this washing process.

SUBMITTER: Kim SH

PROVIDER: S-EPMC9076169 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature

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Preparation and electroactive phase adjustment of Ag-doped poly(vinylidene fluoride) (PVDF) films.

Kim Seung-Hyun SH Park So-Jeong SJ Cho Chang-Yeol CY Kang Hong Suk HS Sohn Eun-Ho EH Park In Jun IJ Ha Jong-Wook JW Lee Sang Goo SG

RSC advances 20191204 69

The crystallinities of Ag-doped poly(vinylidene fluoride) (PVDF) films were modified by removing Ag+ using a novel washing process, which allowed control of the ratio of γ- and β-phases. The polarity of the composite film without Ag+ removal through the washing process reached 98%, and the β-phase content in the total electroactive phase was increased to 61%, according to Fourier-transform infrared spectroscopy. When Ag+ were removed through a process involving s ...[more]

PMID: 35542653

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