Abstract
The photo- and thermal-degradation of polycarbonate in air and vacuum have been investigated using infrared, ultraviolet, mass-spectrograph and X-ray diffractometer. It has been concluded that cross linking is developed in polycarbonate by irradiation with ultraviolet rays. The carbonate group is broken down at high temperature, liberating large quantity of carbone dioxide. Hydroxyl group increases in both photo- and thermal- degradation.
