Sulfur (VI) fluoride exchange (SuFEx) reactions can be applied not only in organic click synthesis, but also in the preparation of functional main-chain polymers. In this work, four functional main-chain polysulfates (PNT-PS, NPNT-PS, PHF-PS, and TPE-PS) are synthesized in high yield using the SuFEx reaction at room temperature. The polysulfates exhibit satisfactory thermal stability and solution processability. They are used as the active layer for memory devices (ITO/PNT-PS/Al, ITO/NPNT-PS/Al, ITO/PHF-PS/Al, and ITO/TPE-PS/Al). I-V measurements show that ITO/PNT-PS/Al and ITO/NPNT-PS/Al exhibit stable flash-memory (write-read-erase) behavior, while ITO/PHF-PS/Al and ITO/TPE-PS/Al exhibit WORM (write once read many) behavior. Our studies provide a feasible and efficient synthetic methodology for the preparation of new memory materials.

中文翻译：

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大型共轭发色团和功能性主链多硫酸盐的硫（VI）氟化物交换聚合，具有非易失性存储性能。

硫（VI）氟化物交换（SuFEx）反应不仅可以用于有机点击合成，而且可以用于功能性主链聚合物的制备。在这项工作中，使用SuFEx反应在室温下以高收率合成了四种功能性主链多硫酸盐（PNT-PS，NPNT-PS，PHF-PS和TPE-PS）。多硫酸盐表现出令人满意的热稳定性和溶液加工性。它们用作存储设备（ITO / PNT-PS / Al，ITO / NPNT-PS / Al，ITO / PHF-PS / Al和ITO / TPE-PS / Al）的有源层。IV测量表明，ITO / PNT-PS / Al和ITO / NPNT-PS / Al表现出稳定的闪存（写-读-擦除）行为，而ITO / PHF-PS / Al和ITO / TPE-PS / Al表现出WORM（一次写入多次读取）行为。我们的研究为制备新的记忆材料提供了一种可行而有效的合成方法。