Polycarbonate (PC) is a thermoplastic engineering plastic with excellent properties, and its excellent dielectric properties have broad application prospects in the field of electronics. In this paper, bisphenol Z (BPZ) and diphenyl carbonate (DPC) are used as raw materials to synthesize special polycarbonate (BPZ-PC) by melt transesterification. The effects of catalyst type, catalyst dosage, molar ratio of raw materials, transesterification reaction time and vacuum degree, polycondensation reaction temperature and time on the molecular weight of the product are investigated, and the optimal reaction conditions are obtained. The chemical structure of the product is verified by FTIR, ¹H-NMR and ¹³C-NMR spectra tests. The thermal properties, mechanical properties, optical properties and dielectric properties of BPZ-PC are evaluated. Therefore, due to its excellent performance, BPZ-PC, a high-performance low-dielectric polycarbonate, can be widely used in high-frequency communication, microelectronics, and aerospace industries.

中文翻译：

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熔融酯交换法双酚-Z聚碳酸酯的合成及性能

聚碳酸酯（PC）是一种性能优异的热塑性工程塑料，其优异的介电性能在电子领域具有广阔的应用前景。本文以双酚Z（BPZ）和碳酸二苯酯（DPC）为原料，采用熔融酯交换法合成特种聚碳酸酯（BPZ-PC）。考察了催化剂种类、催化剂用量、原料摩尔比、酯交换反应时间和真空度、缩聚反应温度和时间对产物分子量的影响，得出最佳反应条件。产品的化学结构经FTIR、¹ H-NMR和¹³ C-NMR谱测试验证。对BPZ-PC的热性能、机械性能、光学性能和介电性能进行了评价。因此，由于其优异的性能，BPZ-PC这种高性能低介电聚碳酸酯可广泛应用于高频通信、微电子、航空航天等行业。