Polipirol ve tiyenil uç gruplu polisülfon kopolimerleri

Polysulfone (PSU) is a specialty engineering polymer having various industrial applications. PSU is especially used in waste water treatment membranes due to its good mechanical properties, structural and chemical stability. But it is a hydrophobic material and therefore its surface aim to pollute easily, which can be solved by preparetion PSU copolymer or nanocomposite. Polypyrrole (PPy) is a conductive polymer, which has extremely chemical resistance, high surface energy and it is insoluble in many organic solvent. In the membrane field, PPy based membranes used in gas separation and pervaporation. And sepiolite is one of the natural clays, which is a hydrate magnesium silicate fiber, also one of the well known layered clays of the montmorillonites where has several unique channels and pores within. It has also moisture durability, strength and low price. Sepiolite channels give great capacity of absorption and good surface properties, that is bebeficial for hydrophoby of PSU. In this thesis study PSU was synthesized from bisphenol and bis (p-chlorophenyl) sulfone in presence of potassium carbonate by polycondensation and the nanocomposite of PSU with sepiolite were synthesized by in situ method. Their end goups were functionalized with 2-thiophenecarbonyl chloride in order to obtain macromonomers containing thienyl end-group (PSU-ThC and PSU/Sepiolite-ThC), which are capable of giving redox polymerization with pyrrole monomer. Finally copolymers of PPy with these two product were obtained via chemical oxidative polymerization by iron (III) chloride. The synthesized block copolymers were characterized by spectroscopic analysis and the electrical conductivities were investigated with four point probe technique. The obtained samples were also characterized by Scanning Electron Microscope (SEM) and X-Ray Diffraction (XRD).