Tristable data storage device of soluble polyimides based on novel asymmetrical diamines containing carbazole

文献情報

出版日 2016-01-25

DOI 10.1039/C5PY02002F

インパクトファクター 5.582

著者

Jing Zhao, Ling Peng, Ya-Liang Zhu, An-min Zheng, Ying-Zhong Shen

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要旨

Two new asymmetric diamines 9-(2′-bromobenzyl)-9H-carbazole-3,6-diamine (BBCDA) and 9-[2′-(3′′,4′′,5′′-trifluorophenyl)phenyl]-3,6-diaminocarbazole (TFDMC) were synthesised from carbazole. Tristable electrical conductivity switching and non-volatile memory effects are demonstrated in two novel soluble aromatic polyimides, which were prepared from BBCDA and TFDMC by polycondensation with pyromellitic dianhydride (PMDA) and 2,2′,3,3′-biphenyl tetracarboxylic dianhydride (BPDA) via a two-step procedure. All the three conductivity states are accessible, stable and non-erasable. It is noteworthy that the tristable phenomenon of the PI-based memory devices appeared in the process of “erasing”. The resulting polymers were fully characterized and they exhibited excellent organo-solubility and a high thermal stability with the temperature of 5% weight loss under a nitrogen atmosphere over 300 °C.

掲載誌

Polymer Chemistry

CiteScore: 8.6

自己引用率: 7.3%

年間論文数: 457

Polymer Chemistry welcomes submissions in all areas of polymer science that have a strong focus on macromolecular chemistry. Manuscripts may cover a broad range of fields, yet no direct application focus is required.

Tristable data storage device of soluble polyimides based on novel asymmetrical diamines containing carbazole

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