Active solution heating and cooling in electrospinning enabling spinnability from various solvents

Solution electrospinning is a facile method for the production of nanofibrous meshes. Here, we present syringe-jacket heat exchanger as simple add-on solution electrospinning, which enables spinning from various solvents by direct and precise temperature control between ?20 °C 100 °C. An effective manipulation solvent evaporation rate enabled adjusting temperature. Exemplarily, investigated poly(vinylidene fluoride)-co-hexafluoropropylene (PVDF-HFP) in pure dimethylacetamide (DMAc) or acetone representatives low highly volatile solvents. Electrospinning these solutions not possible at ambient conditions, either due to too high rate. However, find that PVDF-HFP nanofibers can be successfully electrospun DMAc 75 ?19 We show first time use an active cooling such acetone. The ability precisely adjust during offers improved process broadens spectrum spinnable compositions. Especially prospect replacing toxic with less-toxic opens up wide field application produced fibers.