Efficient and simplified strategy to access novel polysulfamate materials: from laboratory research to industrial production†

Abstract

The development of materials from laboratory research to industrial production is a complex, challenging, but significant process. Polysulfamates have not been industrially available to date because of the absence of efficient and economical synthetic methods. Herein, a comprehensive process for the development of novel polysulfamate (PSA) materials from laboratory research to industrial manufacture is reported. PSAs were prepared with high molecular weight and narrow polydispersity through nucleophilic polycondensation between aryl bisphenols and disulfamoyl difluorides in the presence of an inorganic base. The polymerization process was stable in moisture and air. The industrial production of PSAs was achieved on 100 kg scale with the assistance of a cooperative factory for the first time. The PSAs displayed excellent solvent tolerance, acid/base resistance, thermal stability, machinability and mechanical properties, which were promising for their application in the area of engineering plastics, as well as high-performance resins.