Browsing by Subject "Cellulose"

Now showing items 1-2 of 2

    • An infrared and SEM study of the margins of some german hyperinflation postage stamps 
      Gómez Jeria, Juan; Clavijo Campos, Ernesto; Cárcamo Vega, José; Gutierrez, Sebastian (RJPBCS Research Journal Pharmaceutical, Biological & Chemical Sciences, 2018-04)
      Infrared spectroscopy and scanning electron microscopy (SEM) studies were performed on the margins (the area without printed colors) of a set of German postage stamps dated 1923 and corresponding to the hyperinflationary ...
    • Carboxymethylcellulose from bleached organosolv fibers of eucalyptus nitens: synthesis and physicochemical ... 
      Yáñez-S, Mauricio; Matsuhiro, Betty; Maldonado, Santiago; González, Raúl; Luengo, Jorge; Uyarte, Omar; Serafine, Daniel; Moya, Sergio; Romero, Julio; Torres, Rodrigo; Kogan Bocian, Marcelo (Springer, 2018-05)
      The objective of the present study was to synthesize sodium carboxymethylcellulose from Eucalyptus nitens cellulose. The cellulose extraction was carried out in three stages. In the first stage, E. nitens wood was fractionated ...