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I need a solid (non-porous) nitrocellulose film, and I am trying to prepare it by solution-casting. I dissolve nitrocellulose in acetone, dimethylformamide or their mixture, pour the solution onto glass and let the solvent evaporate. Unfortunately, the resulting film is non-uniform. Is there any trick that can help me to obtain a uniform film? A specific solvent suitable for such procedure?
When the solvent evaporates, it occurs slowly (the glass petri dish is closed), because fast solvent evaporation even increases the heterogeniety of the resulting film.
Alan F Rawle
Dmitry Bagrov Try spinning the substrate and diluting the nitrocellulose.
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Yuri Mirgorod
Dmitry Bagrov
Try using nitroethane or nitrobenzene as a solvent if they suit your toxicity.
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