SCATTERING AND PHASE-BEHAVIOR OF CROSS-LINKED BLENDS

The static scattering function is calculated for a cross-linked blend in the presence of a low molecular weight solvent. The idea suggested by de Gennes to treat analogously the effects of cross-links in a netw ork and those of electric charges in a dielectric medium is generalize d to include the concept of screening. It is argued that this generali zation could help to resolve the discrepancy between the model and the neutron scattering data in the low q region. Other phenomena are also examined such as the enhancement of compatibility due to cross-links and the kinetics of the microphase separation transition.