Synthesis and characterization of a poly(aniline-based disulfide)/diisocyanate-modified graphite oxide hybrid by a grafting technique

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• 作者：Liangbin Li^a ; Yanhua Sun^a ; Hua Bao^a ; Xingwei Li^a ; Gengchao Wang ; ^a ; ^{gengchaow@ecust.edu.cn"" rel=""nofollow}
• 关键词：Aniline-based polyorganodisulfide ; Polyaniline ; Graphite oxide ; Hybrid materials
• 刊名：European Polymer Journal
• 出版年：2011
• 出版时间：August 2011
• 年：2011
• 卷：47
• 期：8
• 页码：1630-1635
• 全文大小：620 K

文摘

Di-isocyanate-modified graphite oxide (iGO) was obtained by surface grafting of graphite oxide with toluene diisocyanate. A hybrid of iGO with 5-amino-1,4-dihydrobenzo[d]-1′,2′-dithiadiene (DTAn)/aniline (An) copolymer [P(DTAn-co-An)] was synthesized by a grafting technique. The reaction between the –NH₂ groups of the P(DTAn-co-An) and the –NCO groups of the iGO was proved by Fourier-transform infrared spectra. The X-ray diffraction and transmission electron microscopy showed that the lamellar structure of the hybrid was destroyed and the nanofiber-like P(DTAn-co-An) was deposited on the surface of the iGO nanosheets. Compared to the P(DTAn-co-An), the electrochemical cycling stability of the hybrid was significantly improved due to the covalent interaction between the P(DTAn-co-An) and the iGO.