Dear Colleagues,

How can free volume of amorphous polymers be estimated through MS?

I know that Atom&volume tool can be used for this purpose but I do not know how MS calculate the free volume and if that volume is meaningful when comparing different polymers.

Any idea will be welcomed.



It seems that MS inserts spheres of radius R (defined by us) at a distance equal to de van der Walls radii of the atoms in the structure and then calculate the volume summing up all these Vspheres.

what do you think about that?


thanks
Regards,