23_17/2011High-Strength Carbon Nanotubes: High-Strength Carbon Nanotube Fibers Fabricated by Infiltration and Curing of Mussel-Inspired Catecholamine Polymer (Adv. Mater. 17/2011)

Super-strong carbon nanotube fibers can be fabricated by infiltration of poly(ethylenimine)-catechols (PEI-Cs), report Tae Gwan Park, Haeshin Lee, Soon Hyung Hong, and co-workers on p. 1971. PEI-C mimics the amino acid sequence of mussel adhesive proteins in which catechols from 3,4-dihydroxyl-l-phenylalanine and amines from lysine are found. Weak interactions between CNTs are overcome by heat-induced, metal-catalyzed chemical crosslinking of catechol, resulting in high-strength CNT fibers.

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