关键词: 聚碳酸酯, 光气法, 熔融酯交换, 缩聚

Abstract: This paper introduces the characteristics of polycarbonate, explains its main application fields, and introduces two main industrial methods for synthesis of polycarbonate, i.e., interface polycondensation method and melt transesterification method. The features of these two methods are discussed in detail from the aspects of production process, raw material consumption, advantages and disadvantages of process flow and future research and development direction, and the two industrial production processes are compared and analyzed from the aspects of reaction principle, reaction conditions, reaction features, and safety and environment requirements. The distribution of polycarbonate production capacity in China by 2019 are summarized, and the development direction of China’s polycarbonate industry is prospected.

Key words: polycarbonate/PC, phosgene method, melt transesterification, polycondensation