Micro and nano polyacrylonitrile fibers were modified to polyacrylonitrile-monoethanolamine (PAN-MEA) through reaction PAN with ethanolamine. The modified PAN fiber was prepared by conversion nitrile groups into hydroxyle groups using ethanolamine solution with different concentration under refluxing at 91 8C. Modified raw acrylic fibers (RAF) with submicrometer diameters ranging from 120 to 300 nm were produced using electrospinning in N,N-dimethyl formamide (DMF). The PAN-MEA micro and nano fibers were examined as chelating material in a series of batch adsorption experiments for removal of Cu (II), Pb (II) and Ni (II) ions. The fiber structure has been investigated by different experimental techniques of characterization such as Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). Also, the physical and mechanical properties has been investigated in this study. Nano fibers show adsorption metal ions more than the usual fiber because of high ratio of surface to mass.

In this work, raw acrylic fibers (RAF) have been modified with ethanolamine to provide new chelating fibers and prepared polyacrylonitrile-monoethanolamine (PAN-MEA). PAN-MEA fiber was prepared by conversion nitrile groups into hydroxyle groups using ethanolamine solution with different concentration under refluxing at different temperatures and different times.The fiber structure has been investigated by different experimental techniques of characterization such as Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and the physical and mechanical properties has also been investigated in this study. The PAN-MEA was examined as chelating material in a series of batch adsorption experiments for removal Cu (II), Pb (II) and Ni (II) ions. The ion adsorption of PAN-MEA was determined with the atomic adsorption method. PAN-MEA show adsorption metal ions more than usual fiber because of the modification.

Nano-composite particles were prepared by different methods and we used emulsion co-polymerization of methyl methacrylate/butyl acrylate monomers mixture in the presence of well-dispersed silica nano particles to improve physical properties of the base polymers or add proper functions to them. The size distribution and morphology of composite latex particles characterized by dynamic laserlight scattering, Transmission Electron Microscopy and Solid Electron Microscopy. The nano-composites formed by using two nonionic and anionic surfactants and caused to making two acrylic resins which we studied the adhesion, surface hardness, flammability, gloss brightness and organic solvent resistance of samples. This nano-composite acrylic resins were specially improved in the flame and solvent resistance. In our test results, we found that by increasing the silica content of nano-composites, the properties consist of adhesion and gloss decreased, if solvent and flame resistance improved properly.