Polyrotaxane (PR) is a mechanically interlocked polymer (MIP) utilized as an electrolyte because of its distinctive property of dynamic molecular mobility. While numerous studies have concentrated on modifying external properties to decrease high crystallinity, few have explored the control of intrinsic properties. This study examines the crystalline properties and molecular mobility of PR-based electrolytes, along with their effects on ionic conductivity, by manipulating intrinsic properties. By systematically varying the inclusion ratio, we demonstrate that lower inclusion ratios lead to reduced crystallinity, enhancing molecular mobility. Consequently, 100PRE exhibits decreased crystallinity due to lower aggregation probabilities of α-cyclodextrins (α-CDs), longer T₂ relaxation times (0.215 s), and higher ionic conductivity (3.4 × 10^–3 S cm^–1 at 25 °C).

中文翻译：

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机械互锁结构对聚轮烷基聚合物电解质中离子电导率的影响


聚轮烷 （PR） 是一种机械互锁聚合物 （MIP），由于其独特的动态分子迁移率特性而用作电解质。虽然许多研究都集中在改变外部特性以降低高结晶度上，但很少有人探索本征特性的控制。本研究通过操纵本征特性来检查基于 PR 的电解质的晶体性质和分子迁移率，以及它们对离子电导率的影响。通过系统地改变夹杂比，我们证明较低的夹杂比会导致结晶度降低，从而增强分子迁移率。因此，由于 α-环糊精 （α-CD） 的聚集概率较低、T₂ 弛豫时间较长 （0.215 s） 和离子电导率较高（25 °C 时 3.4 × ^10–3 S cm^–1），100PRE 表现出结晶度降低。