Extent of cross-linking is dependent upon equilibrium
swelling. For instance, % equilibrium swelling
decreased from 393 to 337 with increasing amount of GA
from 2.5 to 7.5 mL. This is due to increased cross-link density
and decreased pore volume of the blend matrix (Patel,
Patel, & Kansara, 1994) with increasing amount of GA in
the matrix