The aim of the present work is concerned with the study of the optical
constants of the PMMA/PC blend at different concentrations.
The samples are casted as films from the PMMA and PC homopolymers and
blend. These polymer systems are evaluated spectrophotometically. The
absorption spectra of homopolymers and PMMA/PC blends at different
concertation showed absorption changes in the wavelength range, which depends
on the polymer type, and the concentration of the polymer blends. It was found
that 50% ratio from these polymers showed higher absorption values in
comparison with the homopolymers, besides, the absorption spectroscopy of the
polymer blends did not always effect the similar information obtained from the
spectroscopy of the homopolymers .A phenomenon was attributed to immiscibility
or phase separation as associated with the blends formation. The results of the
optical constant proved that 50%ratio was the best, which was attributed to the
lowest energy gap (2.5 eV). Morphological investigations for the
casted polymer systems were introduced.