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学科主题: 高分子化学
题名: Thermoresponsive graphene oxide-PNIPAM nanocomposites with controllable grafting polymer chains via moderate in situ SET-LRP
其他题名: 通过SET-LRP和ATRP合成结构规整的具有pH响应性的PPEGMEA-g-P2VP双亲水接枝共聚物
作者: Deng Y(邓妍) ; Zhang JZ(张金中) ; Li YJ(李永军) ; Hu JH(胡建华) ; Yang D(杨东) ; Huang XY(黄晓宇)
刊名: J. Polym. Sci. Pol. Chem.
发表日期: 2012
卷: 50, 期:21, 页:4451-4458
收录类别: SCI
部门归属: 中科院上海有机化学研究所; 复旦大学
英文摘要: In this study, we report a mild and efficient strategy for growing thermosensitive polymers directly from the surface of exfoliated graphene oxide (GO). Exfoliated GO sheets were sequentially subject to the epoxide ring-opening reaction with tris(hydroxymethyl) aminomethane (TRIS) to increase the amount of reactive sites, the esterification with 2-bromo-2-methylpropionyl bromide to introduce the Br-containing initiating groups, and the surface-initiated single electron transferliving radical polymerization of N-isopropylacrylamide (NIPAM) to tune the molecular weights of grafted polymers. All these reactions were performed at ambient temperature without losing any other oxygen-containing functionality on GO. The resulting TRIS-GO-PNIPAM nanocomposites still maintain the separated single layers in dispersion, and the dispersibilities in organic solvents are significantly improved. Meanwhile, the aqueous dispersion of TRIS-GO-PNIPAM shows reversible temperature switching self-assembly and disassembly behavior at about 40 degrees C. Such smart graphene-based hybrid materials are promising for applications in nanoelectronics, sensors, and microfluidic switches. (c) 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012
语种: 英语
相关网址: 查看原文
WOS记录号: WOS:000309399700008
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内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/28441
Appears in Collections:高分子材料研究室_期刊论文

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Recommended Citation:
Deng Y,Zhang JZ,Li YJ,et al. Thermoresponsive graphene oxide-PNIPAM nanocomposites with controllable grafting polymer chains via moderate in situ SET-LRP[J]. J. Polym. Sci. Pol. Chem.,2012,50(21):4451-4458.
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