Based on the characteristics of commodity polymers in large quantities and low costs, modification of existing commodity polymers emerges as the most effective approach for exploring novel materials. Nevertheless, conventional modification methods typically involve high-energy processes (e.g., high temperature, high-energy radiation), which may lead to irreversible detrimental effects on the polymers, contradicting the desired performance enhancement through modification. In this work, we propose a carbene-mediated postpolymerization modification (PPM) strategy utilizing diazo compounds. Under photochemical or thermal activation conditions, insertion of the C–H bond can be achieved without compromising the performance of polymers. These diazo compounds can be easily synthesized in just two steps and applied to all C–H-containing polymers. This practical and effective modification strategy offers new opportunities and possibilities for enhancing the value and expanding the applications of polymers.

中文翻译：

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在光或热活化条件下使用重氮化合物进行卡宾介导的聚合物改性


基于商品聚合物大批量、低成本的特点，对现有商品聚合物进行改性成为探索新型材料的最有效途径。然而，传统的改性方法通常涉及高能过程（例如高温、高能辐射），这可能会对聚合物产生不可逆的有害影响，与通过改性所期望的性能增强相矛盾。在这项工作中，我们提出了一种利用重氮化合物的卡宾介导的聚合后改性（PPM）策略。在光化学或热活化条件下，可以在不损害聚合物性能的情况下实现C-H键的插入。这些重氮化合物只需两步即可轻松合成，并应用于所有含 C-H 的聚合物。这种实用有效的改性策略为提高聚合物的价值和扩大其应用提供了新的机遇和可能性。