For membrane preparation PVDF will be used , and I was wondering which solvent is the best for dissolving it, non-Toxic solvent , useful in dissolving other polymers such as PES, PDMS, Peba
Best solvent for in dissolving PVDF is Dimethylacetamide which is non-toxic solvent.
Dear all, the following quote is Taken from the first link référence: PVDF has a very limited solubility in common organic solvents. PVDF is typically dissolved in polar solvents such as DMF, dimethyl sulfoxide (DMSO), N-methylpyrrolidone (NMP) or dimethylacetamide (DMAc). Here, PVDF was dissolved in DMF, typically at 10 wt%.
Solubility of polymers depends on many factors, where MW is the most important one. My Regards
10.1039/C3TC31774A
https://www.researchgate.net/post/How_can_I_dissolve_PVDF_What_kind_of_solvent_completely_dissolve_PVDF_and_is_not_toxic_I_know_nMP_and_MEK_but_I_dont_want_to_use_anything_toxic
https://doi.org/10.1016/0032-3861(91)90515-K
https://pirika.com/NewHP/PirikaE2/PVdF.html
Dear Asmaa Selim
There are many solvents of PVDF. Some solvents are classified as good solvents for PVDF such as DMF and CYCo. While some solvents are classified as poor solvents for it such as ACE and THF. For more details, I suggest you read this paper which demonstrated the effect of DMF, CYCo, ACE, THF, DCM, and their mixtures on the surface structures of PVDF fibers:
"Zaarour B, Zhang W, Zhu L, et al. Maneuvering surface structures of polyvinylidene fluoride nanofibers by controlling solvent systems and polymer concentration. Textile Research Journal, 2019, 89(12): 2406 2422. DOI:10.1177/0040517518792748."
Best Regards
Dr. Bilal Zaarour
Dear Asmaa Selim
The best PVDF solvent to have polar character is DMF
The best one is DMF but you should evaporate the DMF after dissolving the sample because it still stick within the material structure
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