Effect of hydrogen on amino group introduction onto the polyethylene surface by surface-wave plasma chemical modification

Abstract

This work reports the effect of hydrogen concentration on the amino group introduction by the plasma treatment of the polyethylene surface. The amino group selectivity on the polyethylene sheet treated by the surface-wave plasma in various N2/H2 gas mixtures was examined by chemical derivatization combined with x-ray photoelectron spectroscopy (XPS). Amino derivatization along with XPS was employed in order to evaluate the amount of the introduced amino group. The highest concentration of the amino group, about 2.0 in amino-N/100 C-atoms, was obtained in the case of ammonia plasma treatment as well as the highest amino selectivity of about 100% in the amino-N/N ratio.