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Model Supported Morphology Control of Electrospray Deposited Poly(vinylidene fluoride) Film
Author(s) -
Rietveld Ivo B.,
Kobayashi Kei,
Yamada Hirofumi,
Matsushige Kazumi
Publication year - 2007
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200750353
Subject(s) - electrospray , materials science , evaporation , morphology (biology) , deposition (geology) , chemical engineering , substrate (aquarium) , polymer , fluoride , solvent , composite material , chromatography , mass spectrometry , organic chemistry , chemistry , thermodynamics , inorganic chemistry , paleontology , physics , genetics , oceanography , sediment , biology , engineering , geology
Preparation of polymer films with electrospray deposition has been investigated. Morphologies of poly(vinylidene fluoride), prepared under a range of different conditions, have been imaged with AFM. To generalize the conditions under which a particular morphology appears, a model has been used. The model incorporates the parameters that determine droplet size and droplet evaporation in the electrospray deposition process. With the model, film morphology has been shown to depend on the droplet volume at impact, available surface area on the substrate and rate of solvent evaporation from the film. With this information, the model can predict the film morphology under many different spray conditions. This has been demonstrated by determining and predicting the conditions under which PVDF displays the smoothest films.