Two new aromatic diiodides with ether–sulfone linkages were synthesized via a one-step procedure. A series of poly(arylene ether sulfone amide)s were synthesized by a supported palladium-catalyzed polycondensation of aromatic diiodides having ether–sulfone linkages, aromatic diamines, and CO. Polycondensation reactions were conducted in N,N -dimethylacetamide using a magnetic nanoparticles-bound palladium(II) complex [Fe 3 O 4 @SiO 2 -2P-PdCl 2 ] as the catalyst and 1,8-diazabicycle[5,4,0]-7-undecene as the base at 120 °C, yielding poly(arylene ether sulfone amide)s having inherent viscosities of 0.43–0.77 dL/g. The resulting polymers were soluble in polar aprotic solvents and showed glass transition temperatures in the 204–265 °C range, with 10% weight losses occurring at temperatures above 456 °C in nitrogen. Most of the polymers afforded transparent and tough films by solution-casting with tensile strengths of 71.8–82.2 MPa, Young’s moduli of 1.77–2.35 GPa, and elongations at break of 9.3–13.4%. More importantly, this supported palladium catalyst can facilely be separated from the product by simply using an external magnetic field and reused at least seven times with almost consistent activity.

中文翻译：

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钯催化羰基化聚合制备聚亚芳基醚砜酰胺的新方法

通过一步法合成了两种具有醚-砜键的新型芳香族二碘化物。一系列聚（亚芳基醚砜酰胺）是通过负载钯催化的具有醚 - 砜键的芳族二碘化物、芳族二胺和 CO 的缩聚反应合成的。缩聚反应是在 N,N-二甲基乙酰胺中使用磁性纳米粒子进行的 -结合钯 (II) 配合物 [Fe 3 O 4 @SiO 2 -2P-PdCl 2 ] 作为催化剂和 1,8-二氮杂双环 [5,4,0]-7-十一烯作为碱在 120 °C 下，产生聚（亚芳基醚砜酰胺）的特性粘度为 0.43–0.77 dL/g。所得聚合物可溶于极性非质子溶剂，玻璃化转变温度在 204-265°C 范围内，在氮气中温度高于 456°C 时重量损失 10%。大多数聚合物通过溶液浇铸提供透明和坚韧的薄膜，拉伸强度为 71.8-82.2 MPa，杨氏模量为 1.77-2.35 GPa，断裂伸长率为 9.3-13.4%。更重要的是，这种负载型钯催化剂可以通过简单地使用外部磁场轻松地与产品分离，并以几乎一致的活性重复使用至少七次。