Front Cover: Smart materials with various stimulus‐responsiveness are the critical component for the fabrication of intelligent functional devices. In article number 1900560 by Chuanyong Zong, Shuxiang Zhang, and co‐workers, a series of low‐cost N‐substituted maleimide oligomers with acid‐base chromotropic capability are controllably synthesized. The oligomer‐based films can serve as long‐lasting and rapid‐responsive media for rewritable information storage via acid‐printing and base‐erasure.

中文翻译：

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基于低成本N取代马来酰亚胺低聚物的可持久保存信息的可持久存储介质

封面：具有各种刺激响应能力的智能材料是制造智能功能设备的关键组成部分。在宗传永，张书祥和他的同事们的第1900560号文章中，可控制地合成了一系列具有酸碱发色能力的低成本N取代的马来酰亚胺低聚物。基于低聚物的胶卷可作为持久且快速响应的介质，通过酸印刷和碱擦除来存储可重写信息。