This study demonstrates the facile synthesis of ionic polymers using a solid-state mechanochemical ball milling method, which offers a straightforward, ecofriendly, and broad scope compared to conventional solution polymerization techniques. Unlike solution polymerization, which is limited by solvent selection and often results in poor efficiency, direct ball-milling polymerization enables the production of the desired product polymers from a broader range of ionic monomers without solubility and miscibility constraints. We employed free-radical polymerization of styrene and (meth)acrylic ionic monomers, as well as Ru-initiated ring-opening metathesis polymerization of norbornenyl ionic monomers, to demonstrate the effectiveness of the mechanochemical approach. Additionally, the study explored the mechanochemical copolymerization of immiscible monomer pairs such as sodium carboxylate/pyrene and ammonium sulfone betaine/porphyrin moieties, producing water-soluble porphyrin and pyrene polymers. Overall, this research showcases mechanochemistry’s versatility and efficiency in synthesizing ionic polymers, anticipating its use in various applications.

中文翻译：

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离子聚合物的机械化学合成：固态球磨聚合，实现不受限制的溶解度，从而实现不混溶单体的共聚


这项研究证明了使用固态机械化学球磨方法可以轻松合成离子聚合物，与传统的溶液聚合技术相比，该方法提供了简单、环保且范围广泛的方法。与溶液聚合不同，溶液聚合受到溶剂选择的限制并且通常导致效率低下，直接球磨聚合能够从更广泛的离子单体生产所需的聚合物产品，而不受溶解度和混溶性限制。我们采用苯乙烯和(甲基)丙烯酸离子单体的自由基聚合，以及Ru引发的降冰片烯基离子单体的开环复分解聚合，来证明机械化学方法的有效性。此外，该研究还探索了不混溶单体对（例如羧酸钠/芘和磺基甜菜碱/卟啉部分）的机械化学共聚，产生水溶性卟啉和芘聚合物。总体而言，这项研究展示了机械化学在合成离子聚合物方面的多功能性和效率，并预期其在各种应用中的使用。