高储能聚酰亚胺络合物制备及性能研究

As the increasing requirement of energy and the continuous consumption of fossil fuels, the development of high energy storage materials with excellent comprehensive properties is highly desired. High dielectric capacitors are major energy storage devices for applications in advanced electronic and electrical power systems, due to their capability of ultrafast charging-discharging and ultrahigh power density, in which the high dielectric materials is a key component. In this project, novel kinds of aromatic diamines with side groups containing terpyridine units will be designed and synthesized for preparing polyimides with high dielectric performance. The new aromatic diamines will first react with aromatic dianhyrides, to form polyamide acids (PAA). The PAA solution were then mixed with copper (nickel) acetylacetonate to obtain a complex solution. Subsequently, polyimide-Cu(Ni) composite films will be obtained by casting the PAA complex solutions, followed with imidization. The as-synthesized novel polyimide-Cu(Ni) composite films are not only expect to possess high dielectric constant, low dielectric loss and high breakdown strength, but also have excellent mechanical and thermal properties, due to the macromolecules are cross-linked as the existed coordinate bonds. this research has important scientific significance and application value.

随着持续增长的能源需求和化石燃料的枯竭，发展高储能材料具有十分重要的意义。高介电电容器,由于其快速充放电能力和超高的储能密度，可广泛用于电子电器领域的储能器件。而发展高储能密度电容器的关键是研发综合性能优异的高储能密度的介电材料。本项目拟通过分子设计，合成侧基含联三吡啶单元的芳香二胺，与芳香四酸二酐反应生成聚酰胺酸预聚体，乙酰丙酮铜（镍）与聚酰胺酸溶液低温络合，聚酰胺酸铜（镍）络合物涂膜，再高温亚胺化,制备聚酰亚胺铜（镍）络合物材料。期望得到高介电常数、低介电损耗以及高电击穿的高储能材料，而且由于分子之间配位键产生分子间交联，提高了相应聚酰亚胺材料的力学以及热学性能。研究具有重要的科学意义以及应用价值。

随着持续增长的能源需求和化石燃料的枯竭，发展高储能材料具有十分重要的意义。高介电电容器,由于其快速充放电能力和超高的储能密度，可广泛用于电子电器领域的储能器件。而发展高储能密度电容器的关键是研发综合性能优异的高储能密度的介电材料。本项目拟通过分子设计，合成络合金属的芳香二胺，与芳香四酸二酐反应生成聚酰胺酸预聚体，乙酰丙酮铜与聚酰胺酸溶液低温络合，聚酰胺酸铜络合物涂膜，再高温亚胺化,制备聚酰亚胺铜络合物材料。期望得到高介电常数、低介电损耗以及高电击穿的高储能材料，而且由于分子之间配位键产生分子间交联，提高了相应聚酰亚胺材料的力学以及热学性能。研究具有重要的科学意义以及应用价值。