Figure 12. — differential thermal 

 analysis of DMSO xylan treated 

 with 9 percent sodium hydroxide. 



100 200 300 400 500 



Temperature ( C ) 



Figure 13. — Differential thermal 

 analysis of base xylan treated 

 with 9 percent sodium hydroxide. 





















01 i\ X i 







■ m. 1 I i !\ i 

 • i ■ ! \ 



i 





*. ; • * \ 

 •_ ; • • \ 



i 



i 





• • V 



• ; • 



TGA 





*. 









• ^^^^^^^^^^^ 





• • 



• • 



\ DTA 











i i i 



I 





100 



200 300 

 Temperature ( C.) 



400 



100 





80 



C 



0J 





(J 





93 



a. 



60 







0) 





93 



40 





20 





500 



