Preparation of aqueous mono-dispersed carbon nanotubes (CNTs) with high stability and manufacture of

来源 :中国微米纳米技术学会第十届学术年会暨第一届国际会议(1st International Conference of th | 被引量 : 0次 | 上传用户:dys206
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  Carbon nanotubes (CNTs) are the tubular derivatives of fullerenes first discovered by lijima in 1991 [1].Because of their unusual morphology and unique electronic,mechanical,and chemical properties,it makes nanotubes good candidates for the next generation of composite materials.Recent research results have been reported on the use ofnanotubes in polymer,metallic or ceramic matrix composites [2].However,the inertia of the C-C bond also make the as-produced CNTs appear in thick bundles plausible held together by Van der Waals attractions.For every rod-like particle,the attractions are highly directional,which favors parallel alignment so that the nano-effectiveness and function of themselves were limited.In this work,we demonstrated a simple procedure to synthesize a novel-type surfactant dodecyl itaconate (DI) in one-pot for preparation of aqueous CNT.(Figure 1) Due to π-electron function of double bond group on the surfactant molecule,dodecyl itaconate presented excellent dispersed capacity to nanotubes,and aqueous mono-disperse CNT was retrieved,as shown in Figure 2.Also,this mono-dispersion could be maintained colloidal stability for longer period than general surfactant.On the other hand,cellulose materials were used widely in the many fields due to their high flexibility and ease of further processing.
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