ANISOTROPIC, SORPTION AND FILTERING PROPERTIES OF THIN-LAYER POLYMER MATERIALS

The paper presents the results of studies on the production of thin-layer nanofiber non-woven materials based on silk fibroin and acrylonitrile copolymer by the electrospinning method. The dependence of anisotropy characterizing the structural states of the obtained thin-layer polymeric materials on deformation effects, their sorption and filtration properties has been studied. The broad possibility of using nanofiber nonwoven materials as nanofilters and the efficiency of the filtration process of nonwoven materials with an increase in the size of their nanopores are shown.Keywords: Polymer, Silk Fibroin, Acrylonitrile Copolymer, Electrospinning, Isotropic, Anisotropic, Orientation, Nanofiber, Nanomaterial, Formation, Structure, Deformation, Nanofilter.

Magnetic Behavior of Polymorph Composite Nickel Titanate Nanofibers

Polymorph (spinel/ilmenite) composite nanofibers of nickel titanate (NTO) were prepared by sol-gel assisted electrospinning process followed by pyrolysis using styrene acrylonitrile copolymer as precursor, at three different pyrolysis soaking temperatures...

Electrically Conductive Nanocomposites Composed of Styrene–Acrylonitrile Copolymer and rGO via Free-Radical Polymerization

The polymerizable reduced graphene oxide (mRGO) grafted styrene–acrylonitrile copolymer composites were prepared via free radical polymerization. The graphene oxide (GO) and reduced graphene oxide (rGO) was reacted with 3-(tri-methoxysilyl)propylmethacrylate (MPS) and used as monomer to graft styrene and acrylonitrile on its surface. The successful modification and reduction of GO was confirmed using Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analyzer (TGA), Raman and X-ray diffraction (XRD). The mRGO was prepared using chemical and solvothermal reduction methods. The effect of the reduction method on the composite properties and nanosheet distribution in the polymer matrix was studied. The thermal stability, electrical conductivity and morphology of nanocomposites were studied. The electrical conductivity of the obtained nanocomposite was very high at 0.7 S/m. This facile free radical polymerization provides a convenient route to achieve excellent dispersion and electrically conductive polymers.