Conditional variations can lead to micellar transformations resulting in various (equilibrium) morphologies. However, creating differently shaped assemblies under the same final conditions (same ingredients, composition, temperature, etc.) is challenging. We present a thermoresponsive polyelectrolyte system allowing a pathway-dependent preparation of kinetically stable spherical star-like or cylindrical micelles. In more detail, a temperature-induced structure switch is used to generate equilibrated interpolyelectrolyte complex (IPEC) micelles of different morphologies (templates) below and above the lower critical solution temperature in the presence of plasticizer (salt). Then, lowering the salt concentration at a specific temperature kinetically freezes the formed IPECs, keeping the respective microstructural information encoded in the frozen IPEC also at other temperatures. Hence, different nonequilibrium morphologies at the same final conditions are provided. The salt-triggered transition from nonequilibrium to equilibrium micelles can be repeated for the same sample, highlighting a system with an on-demand changeable and restorable structure.

中文翻译：

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可触发和可恢复非平衡胶束的自模板生成

条件变化可导致胶束转化，从而产生各种（平衡）形态。然而，在相同的最终条件（相同的成分、成分、温度等）下创建不同形状的组件具有挑战性。我们提出了一种热响应聚电解质系统，允许以途径依赖性制备动力学稳定的球形星状或圆柱形胶束。更详细地说，在增塑剂（盐）存在的情况下，温度诱导的结构转换用于在低于和高于较低临界溶解温度的情况下生成不同形态（模板）的平衡聚电解质间复合物（IPEC）胶束。然后，在特定温度下降低盐浓度会动态冻结形成的 IPEC，在其他温度下也保持在冷冻 IPEC 中编码的相应微观结构信息。因此，提供了相同最终条件下的不同非平衡形态。对于同一样品，可以重复从非平衡胶束到平衡胶束的盐触发转变，突出显示具有按需可变和可恢复结构的系统。