An aromatic polycarbonate which has a low radical concentration and retains a good color, transparency, durability and stability even after it is kept under high temperature and high humidity for a long time and a composition thereof. The polycarbonate and composition are advantageously used in an optical disk substrate.
一种芳香族聚
碳酸酯,它具有较低的自由基浓度,即使在高温和高湿度条件下长时间保存,也能保持良好的颜色、透明度、耐久性和稳定性,以及它的一种组合物。这种聚
碳酸酯及其组合物可以很好地用于光盘基板。