%0 Journal Article
%T Synthesis and characterization of hydrophobic, ultra
%A Beate Rinderer
%A Christian Schramm
%A Richard Tessadri
%J Polymers and Polymer Composites
%@ 1478-2391
%D 2019
%R 10.1177/0967391119832408
%X Ultra-thin polyimide fibres were fabricated by means of the electrospinning method by using precursor solutions consisting of the organotrialkoxysilanes (3-triethoxysilylpropyl)succinic anhydride (TESP-SA), (3-amino)propyltriethoxysilane (APTES), tetraethoxysilane (TEOS) and methyltriethoxysilane (MTEOS). TESP-SA and APTES were reacted to the corresponding poly(amic)acid (PAA) in an aqueous medium which was electrospun at 15 kV and at a tip to collector distance of 15 cm. TEOS and MTEOS were also incorporated into the precursor solution to modify the surface properties of the ultra-fine fibre mat. The fibre diameter distributions of the as-prepared PAA fibres were measured. The PAA fibres were thermally treated at 220ˇăC resulting in the formation of an organic¨Cinorganic hybrid polyimide fibre mat with ladder-like structure, as could be shown by Fourier transform infrared spectroscopy and X-ray powder diffraction. The ultra-fine fibre assemblies were also characterized by means of scanning electron microscopy, thermogravimetric analysis and water contact angle measurements
%K Electrospinning
%K fibres
%K nanocomposite
%K polyimide
%K sol¨Cgel
%U https://journals.sagepub.com/doi/full/10.1177/0967391119832408