PEGylation of Double-Walled Carbon Nanotubes for Increasing Their Solubility in Water

查看全文 作　　者：Haiyu [1]Nie;Wei [1]Guo;Yuan [1]Yuan;Zengpei [1]Dou;Zujin [1]Shi;Zhen [2]Liu;Haifang [1,2]Wang;Yuanfang [1,2]Liu

机构地区：[1]Beijing National Laboratory for Molecular Sciences,College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,China;[2]Institute of Nanochemistry and Nanobiology,Shanghai University,Shanghai 200444,China

出　　处：《Nano Research》索引2010年第3卷第2期,共7页

基　　金：We thank National Natural Science Foundation of China(No.20871010);National Program on key Basic Research Project(973 Program)(Nos.2006CB705604 and 2009CB930303);the Shanghai Leading Academic Disciplines(No.S30109)for financial support. 摘　　要：Polyethylene glycol(PEG)functionalized double-walled carbon nanotubes(DWNTs)have been synthesized by a[2+1]cycloaddition reaction and characterized by transmission electron microscopy,atomic force microscopy,Raman spectroscopy,thermal gravimetric analysis,and UV-visible spectroscopy.Functionalization affords a large increase in the aqueous solubility of DWNTs.The saturated concentrations of DWNTs functionalized with diazido-terminated PEG800(with a molecular weight of 800)and azido-terminated PEG750 monomethylether(with a molecular weight of 750)are very similar-0.36 and 0.37 mg/mL(DWNTs equivalent concentration),respectively. 关键词：Double-walled carbon nanotubes(DWNTs) FUNCTIONALIZATION polyethylene glycol(PEG) water soluble

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PEGylation of Double-Walled Carbon Nanotubes for Increasing Their Solubility in Water

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