X-ray diffraction study of pine wood treated with NaOH
[ 1 ] Instytut Technologii i Inżynierii Chemicznej, Wydział Technologii Chemicznej, Politechnika Poznańska | [ P ] pracownik
2005
Rocznik: 2005 | Tom: vol. 13 | Numer: no. 5 (53)
artykuł naukowy
angielski
- X-ray diffraction
- supermolecular structure
- pine wood
- cellulose
- mercerisation
- sodium hydroxide
EN The supermolecular structure of pine wood after mercerisation by sodium hydroxide was investigated by means of wide-angle x-ray scattering (WAXS). The relationship between the condition of mercerised pine wood (Pinus silvestris L.) and the degree of transformation from cellulose I to cellulose II were analysed. It was found that the amount of cellulose II depends on the concentration of NaOH solution as well as on the time of chemical activation. The greatest efficiency of polymorphic transition of cellulose was noted in the highest concentration of sodium hydroxide solution (20 and 25%). Moreover, the rate of polymorphic conversion of cellulose by the decrease in the crystallinity of wood was estimated.
87 - 89
witryna wydawcy
ostateczna wersja opublikowana
0,397