Multicomponent polymerization (MCP) has become a powerful tool for the preparation of polymers with complex or well-defined structures. The development of MCPs that can take full advantage of the great diversity of monomer combinations is attractive but still remains challenging. Herein, we report a facile MCP method using isocyanides, sulfonyl azides, and alcohol/phenols as monomers, in which the monomer combination can be readily tuned to achieve the diversity-oriented synthesis of poly(sulfonyl isourea)s in excellent atom economy. By systematically optimizing the polymerization conditions and changing the functionalities and combinations of monomers, a series of heteroatom-rich polymers with sulfonyl isourea units and high molecular weights (M_w values of up to 120 500) were successfully prepared. All the obtained polymers exhibit good thermal stability, and the variation in polymer backbone structures led to an obvious difference in their morphological stability. This diversity-oriented MCP strategy may provide inspiration and new possibilities for the development of heterochain polymers with advanced functionalities.

中文翻译：

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通过异氰化物、磺酰叠氮化物和醇/酚的多组分聚合实现聚磺酰异脲的多样化合成


多组分聚合 （MCP） 已成为制备具有复杂或明确结构的聚合物的有力工具。开发能够充分利用单体组合多样性的 MCP 很有吸引力，但仍然具有挑战性。在此，我们报道了一种使用异氰化物、磺酰叠氮化物和醇/酚作为单体的简单 MCP 方法，其中单体组合可以很容易地调整，以实现聚（磺酰基异脲）的多元化合成，具有优异的原子经济性。通过系统优化聚合条件并改变单体的功能和组合，成功制备了一系列具有磺酰异脲单元和高分子量（M_w 值高达 120 500）的富含杂原子的聚合物。所有获得的聚合物都表现出良好的热稳定性，聚合物主链结构的变化导致其形态稳定性存在明显差异。这种以多样性为导向的 MCP 策略可能为开发具有先进功能的异链聚合物提供灵感和新的可能性。