Blog

For a typical polymer sample, the Mw (weight-average molecular weight) is always greater than the Mn (number-average molecular weight).

Why is Regenerated cellulose (Cellulose II) thermodynamically more stable than native cellulose (Cellulose I)?

Select all true answers 

Which end of this cellulose chain is the reducing end group ( answer “right” or “left” only, no extra words)?

Under what conditions do cellulose stopping reactions occur?

Please note that there are four parts to this question. a. Please describe what happens between Molecules A and B.  b. Please describe what happens between Molecules C and D.  c. Please describe the electron/atom movements for reactions leading to Molecules F and G  from molecule E (i.e.,the last two reaction steps). To make it a little easier to understand count the Carbons starting from top (e.g “C1 gives up a Hydrogen and moved one electron pair to C3” … this is of course only serves as an example about describing reactions. This statement is real a nonsense!!) d. Where does molecule G come from?   

During cellulose biosynthesis, what is the substrate for cellulose synthases?

Slide43.JPG

Slide1.JPG

Slide31.JPG