期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 317, 期 1, 页码 346-349出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2007.08.057
关键词
pH-responsive; nanotube; dispersion; polyelectrolyte; Cryo-TEM; viscosity
The dispersion of nanotubes by pH-responsive polymers (i.e., weak polyelectrolytes) enables the macroscopic properties of aqueous suspensions to be tuned. Microstructural changes were achieved as a function of pH in aqueous suspensions containing single-walled carbon nanotubes and imaged by cryogenic-TEM. Clear evidence of pH-sensitive nanotube dispersion is shown. We expect that many useful properties of these nanotube-polymer systems could be sensitive to microstructure, making this technique important for aqueous processing of carbon nanotubes and macroscopic tailoring of solid polymer nanocomposite behavior. (c) 2007 Elsevier Inc. All rights reserved.
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