Herein, we present a highly efficient method for synthesizing multifunctional polymers. This method involves the sequential postpolymerization modification (PPM) of a highly reactive aldehyde polymer. We introduce an allylic alcohol functionality into the polymer backbone via Barbier-type allylation, a process facilitated by easy-to-handle indium(0) powder. This step enables the formation of orthogonal pendants, secondary alcohol, and terminal alkene, which can be further functionalized through esterification and thiol–ene click reactions. All of these processes are carried out under mild conditions, ensuring high efficiency and a wide range of functional groups. Our study underscores PPM’s operational simplicity and versatility in developing advanced polymer materials and expanding the scope of multifunctional polymer design.

中文翻译：

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使用单个醛重复单元通过顺序后聚合改性合成多功能聚合物：烯丙基化和正交酯化以及巯基-烯反应


在此，我们提出了一种合成多功能聚合物的高效方法。该方法涉及高反应性醛聚合物的连续后聚合改性 （PPM）。我们通过 Barbier 型烯丙基化将烯丙基醇官能团引入聚合物主链中，这一过程由易于处理的铟 （0） 粉末促进。该步骤能够形成正交悬垂、仲醇和末端烯烃，它们可以通过酯化和巯基-烯点击反应进一步官能化。所有这些过程都在温和的条件下进行，确保了高效率和广泛的官能团。我们的研究强调了 PPM 在开发先进聚合物材料和扩大多功能聚合物设计范围方面的操作简单性和多功能性。