Study of the optical constants of the PMMAPC blends

Abstract EN

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 photopolymers 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.