Dimethylacetamide electrospinning

A similar treatment was used to electrospin poly(vinylidene fluoride] (PVDF]/PPy composites, which were prepared by spinning a nonwoven web from a solution of PVDF and CUCI2.2H2O in dimethylacetamide (DMAc) and then exposing the spun fibers to Py vapors in order to produce the conductive composites. The electrical conductivity of the PPy composites was affected by the fabrication method and oxidant content in the nonwoven web. 

A few research conducted to fabricate the Electrospun PVDF-HFP membrane by electrospinning process from asolutionofpoly(vinylidenefluoride-cohexafluoropropylene) in a mixture of acetone/N, N-dimethylacetamide to encapsulate electrolyte solution [45, 46], Although the solar eneigy-to electricity conversion efficiency of the quasi-solid-state solar cells with the electrospun PVDF-HFP membrane was slightly lower than the value obtained from the conventional liquid electrolyte solar cells, this cell exhibited better long-term durability because of the prevention of electrolyte solution leakage. 

Mixing solvents with different surface tensions is a simple way to adjust the solution properties, especially surface tensiom For example, Liu et. al. studied the electrospinning of cellulose acetate. They foimd neither acetone (surface tension 23.7 dyne/cm) nor dimethylacetamide (surface tension 32.4 dyne/cm) allows... 

More than 100 polymers, both synthetic and natural, have been successfully electrospun into nanofibers, mostly from polyma solutions, as any polymer may be electrospun into nanofibers, provided that the polymer molecular weight is sufficiently high and the solvent can be evaporated in the time during the jet transit period, over a distance between the spinneret and the collector. Standard polymers successfully electrospun into nanofibers include polyacrylonitrile (PAN), poly(ethylene oxide) (PEO), poly(ethylene terephthalate) (PET), polystyrene (PS), poly(vinyl chloride) (PVC), Nylon 6, PVA, poly(8-caprolactone), Kevlar (poly[p-phenylene terephthalamide]), poly(vinylidene fluoride) (PVDF), polybenzimidazole, polyurethanes (PUs), polycarbonates, polysulfones, poly(vinyl phenol) (PVP), and many others [36,37]. Electrospinning has also been used to produce nanofibers from natural biomacromolecules, including cellulose [either electrospun from cellulose acetate (CA) with subsequent hydrolysis or directly electrospun from cellulose solutions in Af,Af-dimethylacetamide with lithium chloride], collagen and gelatin, modified chitin, chitosan, and DNA. 

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