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首页> 外文期刊>Nanotechnology >The preparation of highly water-soluble multi-walled carbon nanotubes by irreversible noncovalent functionalization with a pyrene-carrying polymer
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The preparation of highly water-soluble multi-walled carbon nanotubes by irreversible noncovalent functionalization with a pyrene-carrying polymer

机译：通过a携带聚合物的不可逆非共价官能化制备高度水溶性的多壁碳纳米管

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摘要

Multi-walled carbon nanotubes (MWNTs) have been solubilized in water via a noncovalent method of exfoliation and centrifugation cycles with the assistance of hydrolyzed poly(styrene-co-maleic anhydride) carrying pyrene (HPSMAP). After the obtained solution was micro-filtered and dried, a water-soluble complex of HPSMAP-MWNTs was obtained. The solubility of HPSMAP-MWNTs was measured to be 46.2 mg ml(-1) with a net MWNT concentration of 7.4 mg ml(-1) in water. Thermal gravimetric analyses showed that there was a large amount of polymer remaining on the surface of MWNTs irreversibly after thoroughly removing the free polymer. Other characterizations using transmission electron microscopy, Fourier transform infrared (FTIR) spectroscopy, fluorescence spectra, and fluorescence decay were conducted.
机译：多壁碳纳米管（MWNTs）已通过非共价剥落和离心循环方法，在带有pyr的水解聚苯乙烯-马来酸酐共聚物（HPSMAP）的作用下溶解于水中。将获得的溶液微过滤并干燥后，获得HPSMAP-MWNT的水溶性络合物。测得HPSMAP-MWNTs在水中的净溶解度为46.2 mg ml（-1），净MWNT浓度为7.4 mg ml（-1）。热重分析表明，彻底清除游离聚合物后，不可逆地在MWNTs表面残留了大量聚合物。使用透射电子显微镜，傅立叶变换红外（FTIR）光谱，荧光光谱和荧光衰减进行了其他表征。

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