Angewandte Chemie International Edition·· 10 小时前精选AI 评分78
双核 Salen-Al 催化剂实现光控串联聚合，一锅合成 (ABCBA)n 多嵌段共聚物
Photo‐Controlled Tandem Polymerization Enabled by a Dinuclear Salen‐Al Catalyst for Multiblock Copolymer Synthesis
AI 导读
研究报道了一种以三硫代碳酸酯桥联的双核铝 Salen 配合物，其分子内光诱导能量/电子转移（PET）过程动力学快，可同时桥接乙烯基单体的 PET-RAFT 聚合与环氧/酸酐开环共聚（ROCOP）、外消旋丙交酯开环聚合（ROP），以及原位生成的 Al–O 活性物种与二异氰酸酯的逐步增长聚合。
推荐理由
一种双核 Salen-Al 催化剂把 PET-RAFT、ROCOP、ROP 与异氰酸酯扩链串到同一反应釜，读者可据此了解多嵌段共聚物一锅合成的催化设计思路。
创新点
此前串联聚合多局限于两个相互兼容的循环，该工作用桥联双核铝催化剂的双向链增长路径把四种机理不同的聚合串接起来，并利用酸酐消耗顺序控制 ROP 的启动时机。
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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