CCL: molecular chain dimensions

[John <jparm "at@at" umich.edu>]

Hello All,
 I'm conducting research on biological nanoscale composites. I have a
 situation where I know the connectivity of a molecular chain (sulfated
 fucose polymer), and would like to
 calculate the physical dimensions of the chain (average diameter for all
 of the various conformations) as well as, say, how many molecular chains
 may be bundled together to make a nano-scale fiber of known diameter.
 I was hoping that someone could recommend some references so that I
 could learn how to do this. Also I understand that there are computer
 programs that do these types of calculations, what would be an
 appropriate one? Thank you.