Front Cover: In article number 1900507 by Tsukuru Masuda, Madoka Takai, and co‐workers, a millimeter‐sized thermoresponsive gel is prepared by using a novel strong cationic radical initiator, ADIP. The cationic residue of ADIP is introduced in the gel network. In response to temperature change, the gel shows a drastic volume transition.

中文翻译：

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基于强阳离子自由基引发剂的热响应水凝胶设计，显示出剧烈的体积转变

前盖：Tsukuru Masuda，Madoka Takai及其同事在编号为1900507的文章中，使用新型强阳离子自由基引发剂ADIP制备了毫米大小的热敏性凝胶。ADIP的阳离子残基被引入凝胶网络中。响应温度变化，凝胶显示急剧的体积转变。