The Role of Solution Phase Water on the Deposition of Thin Films of Poly(vinylidene fluoride)
By Marcel Benz, W. B. Euler, O. Gregory. 2002
259 citations recorded by the source corpus.
Thin films of PVDF were deposited from a variety of solution conditions and examined by IR spectroscopy and scanning electron microscopy. Methods to rapidly assess the film thickness and the phase composition of PVDF films have been developed. In particular, the formation of the ferroelectric β phase can be controlled by the composition of the solvent, notably the water content. Using a hydrated salt in the casting solvent reproducibly formed films with high β phase content. However, the water also induces increased surface roughness in the deposited films. The nature of the PVDF films also is influenced by the kinetics of the evaporation process, and this was followed by IR spectroscopy. The rate constants depend on both the film thickness and the gas-phase humidity, indicating that solvent diffusion is an important contributor to both the bulk phase composition and the surface structure of the polymer films.
Subfields: Biomedical Engineering, Surfaces, Coatings and Films
View Paper: https://www.semanticscholar.org/paper/45e11427e037f50686c8998b1ae9928b8f792045
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In Biomedical Engineering
In Surfaces, Coatings and Films
Citations in the corpus
- Properties and Applications of the β Phase Poly(vinylidene fluoride) (2018, methodology): “[45] prepared 2 μm thick PVDF films by spin coating PVDF solutions on single-crystal silicon wafers with acetone/DMF as a solvent.”
- Investigating the potential of membranes formed by the vapor induced phase separation process (2020, background): “[244] in their study on spin-coating of PVDF solutions.”
- A Review of Piezoelectric PVDF Film by Electrospinning and Its Applications (2020, unknown): “produced PVDF films with 2 μm thickness by spin-coating using dimethylformamide (DMF) with acetone used as the solvent [46].”