Polymeric solid‐solid phase‐change materials (SSPCMs) possessing excellent shape stability and adaptability are able to store renewable thermal energy in an economically feasible and environmentally friendly way. Integration of chemical cross‐links colorless and recyclability in a single SSPCM is challenging and interesting at present. Herein, the oximecarbamate bond was firstly introduced in chemically cross‐linked polyurethanes to prepare recyclable SSPCMs, in which finely dispersed PEG segments function as phase‐change components as well as polymeric skeletons. The excellent thermal energy storage capacity (with the enthalpy reached up to 101 J/g) and remarkable thermal stability of the synthesized SSPCMs had been confirmed. Moreover, the as‐prepared SSPCMs can be recycled and reprocessed by simple hot pressing because of the reversibility of oximecarbamate bond. This SSPCM combines good thermal storage capacity and appealing recyclability, exhibiting sustained usability for energy storage.

中文翻译：

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通过可逆肟交联的可回收固-固相变材料？氨基甲酸酯键用于太阳能存储

具有出色形状稳定性和适应性的聚合固-固相变材料（SSPCM）能够以经济可行和环保的方式存储可再生热能。目前，在单个SSPCM中整合无色化学交联性和可回收性极具挑战性和趣味性。在这里，肟氨基甲酸酯键首先被引入化学交联的聚氨酯中，以制备可回收的SSPCM，其中细分散的PEG链段起相变组分和聚合物骨架的作用。已确认合成的SSPCM具有出色的储热能力（焓达到101 J / g）和出色的热稳定性。而且，由于肟氨基甲酸酯键的可逆性，所制备的SSPCM可以通过简单的热压进行回收和再加工。该SSPCM具有良好的蓄热能力和吸引人的可回收性，显示出持续的能量存储可用性。