Dispersion of Multi-Walled Carbon Nanotubes Modified with Poly-L-Lysine in Water

Ting Ting Zhang; Li Ming Zou; Xin Long Ling; Xi Li

doi:10.4028/www.scientific.net/AMM.275-277.1785

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Microstructures and Electrocatalytic Properties of Nitrogen Doped Graphene Synthesized by Pyrolysis of Metal Tetrapyrazinoporphyrazine
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Experimental Research on Mechanical Characteristics in the Process of Nanoscale Sliding Contact
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Synthesis and Characterization of Neodymium Zirconate Nanocrystals Doped with Aluminium Ions by a Salt-Assistant Combustion Method
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Morphology Transition of Diblock Copolymer with Nanoparticles Confined in Cylindrical Nanopores
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Dispersion of Multi-Walled Carbon Nanotubes Modified with Poly-L-Lysine in Water
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Preparation and Properties of Carbon Nanotubes Reinforced Cu Matrix Composites for Electronic Packaging Application
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Preparation and Characterization of Aligned Carbon Nanotube Fibers
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Fabrication of WO₃ with Macroscopic Structures via CNFs Template
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Computational Study of Thermal Stabilities of Cu Nanorods at Atomic Scale
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 275-277Dispersion of Multi-Walled Carbon Nanotubes...

Dispersion of Multi-Walled Carbon Nanotubes Modified with Poly-L-Lysine in Water

Abstract:

A noncovalent method was presented in order to improve the solubility of multi-walled carbon nanotubes (MWCNTs) in water. Poly (ε-benzyloxycarbonyl-L-lysine) (PZLL) was prepared by ring-opening polymerization of ε-carbobenzoxy-L-lysine N-carboxyanhydride (Z-L-Lys NCA). After the removal of the benzyloxycarbonyl group, water-soluble poly-L-lysine (PLL) was obtained. The structure of PZLL and PLL was characterized by FTIR and 1H NMR. Dispersion of MWCNTs in the water solution of PLL was investigated by ultraviolet spectrophotometer and visual inspection. When the mass ratio of MWCNTs to PLL is 1:50 and the pH value of the water solution of PLL is 5, MWCNTs can be well dispersed in water.