The double-stranded block copolymers containing ionic conductive and strong polar segments were synthesized by ring-opening metathesis polymerization, and self-assembled into the hollow sphere nanostructure. These block copolymers displayed high dielectric constant of 25, low dielectric loss of 0.02, enhanced stored/released energy density of 2.60/2.38 J cm⁻³ at 245 MV m⁻¹, and good charge-discharge efficiency of 91.5%, which were much better than those of double-stranded block copolymers without the strong polar substituents on the aromatic linker. The excellent dielectric properties of copolymers were attributed to the combination of strong dipolar, ionic, and interfacial polarizations, as well as the well-defined nanostructure to effectively inhibit the leakage current of the conductive domains by the insulating blocks.

通过开环易位聚合反应合成了具有离子导电性和强极性链段的双链嵌段共聚物，并将其自组装成空心球纳米结构。这些嵌段共聚物在245 MV m ^-1时显示出25的高介电常数，0.02的低介电损耗，2.60 / 2.38 J cm ^-3的增强的储存/释放能量密度，具有良好的充放电效率，为91.5％，这比在芳族接头上没有强极性取代基的双链嵌段共聚物要好得多。共聚物优异的介电性能归因于强的偶极，离子和界面极化以及良好定义的纳米结构的组合，以有效抑制绝缘块对导电区域的泄漏电流。