The Influence of Technological Factors and Polar Molecules on the Structure of Fibrillar Matrices Based on Ultrafine Poly-3-hydroxybutyrate Fibers Obtained via Electrospinning

The article examines the regularities of structure formation ultrafine fibers based on poly-3-hydroxybutyrat under influence technological (electrical conductivity, viscosity), molecular (molecular weight), and external factors (low-molecular nanodispersed substances different chemical natures). Systems with polar are characterized by presence intermolecular interactions a more perfect crystalline fiber structure. Changes in characteristics affect process, resulting alterations morphology nonwoven fabric, geometry, supramolecular Polymer weight, electrical solution viscosity diameter. is heterogeneous, consisting both non-equilibrium amorphous phases. This shows that an increase weight concentration polymer, diameter increases. At same time, productivity electrospinning process does not geometry. solvent play decisive role even As polarity increases, interaction groups poly-3-hydroxybutyrate result this interaction, crystallites improved, phase polymer compacted. action molecules similar to nanoparticles. They crystallinity via nucleation mechanism. significant development matrix-fibrillar systems for drug delivery, bioactive substances, antiseptics, tissue engineering constructs, scaffolds, artificial biodegradable implants, sorbents, other applications.