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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
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)
2012
发表期刊J. Polym. Sci. Pol. Chem.
ISSN0887-624X
卷号50期号:21页码:4451-4458
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
学科领域高分子化学
部门归属中科院上海有机化学研究所; 复旦大学
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收录类别SCI
语种英语
WOS记录号WOS:000309399700008
引用统计
被引频次:53[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sioc.ac.cn/handle/331003/28441
专题高分子材料研究室
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GB/T 7714
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.
APA 邓妍,张金中,李永军,胡建华,杨东,&黄晓宇.(2012).Thermoresponsive graphene oxide-PNIPAM nanocomposites with controllable grafting polymer chains via moderate in situ SET-LRP.J. Polym. Sci. Pol. Chem.,50(21),4451-4458.
MLA 邓妍,et al."Thermoresponsive graphene oxide-PNIPAM nanocomposites with controllable grafting polymer chains via moderate in situ SET-LRP".J. Polym. Sci. Pol. Chem. 50.21(2012):4451-4458.
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