Angewandte Chemie International Edition·· 6 小时前精选AI 评分63
硒代氨基甲酸酯动态共价键用于可重构3D打印材料并实现折射率可调
Dynamic Selenocarbamate Chemistry Enables Reconfigurable 3D‐Printed Materials With Tunable Refractive Index
AI 导读
研究将硒代氨基甲酸酯键引入光聚合3D打印网络，小分子研究测得该交换反应的活化能为44 kJ mol⁻¹。作者通过二硒醇与2-异氰酸酯基乙基丙烯酸酯的click反应合成含硒代氨基甲酸酯的二丙烯酸酯交联剂，并将其用于DLP打印配方，所得动态共价网络（CAN）表现出快速应力松弛、低拓扑冻结温度、良好热稳定性和热压再加工性。
推荐理由
硒代氨基甲酸酯交换反应被引入DLP打印网络，其44 kJ mol⁻¹的活化能与可调折射率给出了动态共价3D打印的新键合选择。
创新点
把硒代氨基甲酸酯这一动态共价键做成可光聚合的DLP打印交联剂，在再加工与形状重构之外同时带来可调折射率和高透明度，扩展了可用于增材制造的动态共价键种类。
图表、补充材料与最终表述以原文为准。阅读原文
来源：Angewandte Chemie International Edition · doi.org
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