Thermally‐induced cross‐linking of poly[2.2‐propane‐bis‐(4‐phenyl carbonate)]

The cross‐linking of poly [2.2‐propane‐bis‐(4‐phenyl carbonate)] by heating in a continuously evacuated system has been examined at various temperatures (295‐382°C). The effect of time and temperature on the viscosity of the polymer and the gel content is discussed.