Front Cover: A core–shell nanogel composed of crosslinked poly‐(N‐isopropylacrylamide) as the core and poly‐sulfobetaine shell is prepared by reversible addition‐fragmentation chain transfer (RAFT) polymerization. These nanogels exhibit tunable dual thermoresponsive behavior, i.e., lower critical solution temperature (LCST) and upper critical solution temperature (USCT). A distinct core and shell were visualized using energy dispersive X‐ray spectroscopy, which clearly shows a sulfur‐rich shell and a sulfur‐deficient core. Further details can be found in article number 1700478 by Robin Rajan and Kazuaki Matsumura*.

中文翻译：

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大分子。快速通信。22/2017

前盖：通过可逆加成-断裂链转移（RAFT）聚合反应制备由交联聚N-异丙基丙烯酰胺为核和聚磺基甜菜碱壳的核-壳纳米凝胶。这些纳米凝胶表现出可调的双重热响应行为，即较低的临界溶液温度（LCST）和较高的临界溶液温度（USCT）。使用能量色散X射线光谱仪可以看到一个独特的核和壳，清楚地显示了一个富硫的壳和一个缺硫的核。可以在Robin Rajan和Kazuaki Matsumura *的文章编号1700478中找到更多详细信息。