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Sulfur (VI) Fluoride Exchange Polymerization for Large Conjugate Chromophores and Functional Main‐Chain Polysulfates with Nonvolatile Memory Performance
Author(s) -
Fan Huiru,
Ji Yujin,
Xu Qingfeng,
Zhou Feng,
Wu Bin,
Wang Lihua,
Li Youyong,
Lu Jianmei
Publication year - 2018
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201800067
Subject(s) - thermal stability , polymer , polymerization , functional polymers , chromophore , materials science , fluoride , conjugate , yield (engineering) , chemistry , chemical engineering , photochemistry , organic chemistry , inorganic chemistry , mathematical analysis , mathematics , engineering , metallurgy
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.