Analysis of the Functional Groups Formed on the Corona-Treated Cellulose Fibre Sheet Surface by Means of Chemical Modification in Liquid Phase-ESCA Technique

抄録

The cellulose sheet surface with various durations of corona treatment were characterized by chemical modification in liquid phase-ESCA technique. Whatman #1 filter paper, regenerated cellulose film, handsheet from thermomechanical pulp (TMP), and handsheet from softwood bleached sulfate pulp (N•BKP) were used after washing with ethanol/benzene mixture. Carboxyl groups were found on the main chain of lignin on the surface of handsheet from TMP. However, no carboxyl groups were found on the main chain of the surface of the other cellulose sheets, namely, Whatman #1 filter paper, regenerated cellulose film and handsheet from N•BKP. Carbonyl groups were introduced on the main chain of the surface of the all sheets used, after the treatment with corona discharge. Chemical modification-ESCA technique was very effective for the analysis of functional groups formed on the cellulose fibre sheet surfaces.