Anhidrit İçeren Polimer/Halloysit Nanotüplerin (P/Hnt) Tasarımı, Sentezi Ve Karakterizasyonu

Abstract

Design, synthesis and application of polymer nanocomposite are important in the nanotechnology. Polymer nanocomposites made with organic and/or inorganic fillers which have nanosize in the polymer matrix and they are materials with unique properties which high surface activity, large surface area, superior thermal and mechanical strength. In recent years, especially; drug delivery, bone implant or as fill material in the body can be used preferable biocompatible and environmentally friendly materials. Therefore, biocompatible polymeric nanocomposite material is used instead of conventional nano additive material. Polymer-clay nanocomposites that can satisfy all these demands are considered to be ideal materials. Halloysite nanotubes (HNT) are one of the used clay for the preparation of polymer-clay nanocomposites. Halloysite, in kaolin group, have an ideal formula Al2[Si2O5(OH)4].2H2O, that is commonly tubular form and composed of two-layered sheet with inner sheet alumina layer and outer sheet silica layer. HNT is green material and it is thought that halloysite nanotube and composite materials containing halloysite nanotube will gain even more importance in the field of green chemistry. This objective of this study is to design, synthesize and characterize biocompatible poly(maleic anhydride-alt-vinyl acetate)/halloysite nanotubes P/HNT) for dental fillings or bone cement using as potential functional polymeric materials. For this purpose, electron acceptor (A) and electron donor (D) monomers are used for synthesized for charge transfer complex radical copolymerization. Poly(maleic anhydride-alt-vinyl acetate) copolymer (1:1) was synthesized and characterized. Polymeric nanotube; poly(maleic anhydride-alt-vinyl acetate)/ halloysite nanotubes (P/HNT) were synthesized by in situ solution complex radical copolymerization via charge transfer (CTC). Synthesized copolymer, halloysite and polymer/clay nanotubes can be characterized and structural enlightened by spectroscopic methods (Fourier Transform Infrared Spectroscopy, Nuclear Magnetic Resonance Spectroscopy and X-Ray Diffraction(ATR-FTIR, NMR (1H,13C)and XRD), thermal methods (Differential Scanning Calorimeter (DSC) and Thermo Gravimetric Analysis (TGA), Dynamic Mechanical Analysis (DMA),Brunauer, Emmett and Teller (BET) and Transmission Electron Microscope (TEM), X-ray photoelectron spectroscopy (XPS), a surface analysis technique, will be used to obtain chemical information about the surfaces of materials. Cell experiment studies were conducted to check the compatibility of the filling material with the gum cells and for cell viability.