On April 30, 2020, Liu, Limin; Li, Jianying; Yan, Tao; Cai, Mingzhong published an article.Electric Literature of 80-07-9 The title of the article was Novel preparation of poly(arylene ether sulfone amide)s via supported palladium-catalyzed carbonylative polymerization. And the article contained the following:
Two new aromatic diiodides with ether-sulfone linkages were synthesized via a 1-step procedure. Poly(arylene ether sulfone amide)s were synthesized by a supported Pd-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 Pd(II) complex [Fe3O4@SiO2-2P-PdCl2] as the catalyst and 1,8-diazabicycle[5,4,0]-7-undecene as the base at 120°, 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° range, with 10% weight losses occurring at temperatures >456° in N. 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 Pd catalyst can facilely be separated from the product by simply using an external magnetic field and reused at least 7 times with almost consistent activity. The experimental process involved the reaction of 4,4′-Sulfonylbis(chlorobenzene)(cas: 80-07-9).Electric Literature of 80-07-9
The Article related to aromatic polyamide polyether polysulfone polymerization catalyst palladium magnetic nanoparticle, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.Electric Literature of 80-07-9
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