ABSTRACT
The size of macromolecules gives them their unique and useful properties. Size allows
polymers to act more as a group so that when one polymer chain moves, surrounding chains
are affected by that movement. Size also allows polymers to be nonvolatile since the second-
ary attractive forces are cumulative (e.g., the London dispersion forces are about 8 kJ=mol of repeat units), and, because of the shear size, the energy necessary to volatilize them is greater
than the energy to degrade the polymer.
