Weak polyelectrolyte control of carbon nanotube dispersion in water

被引：54

作者：

Grunlan, Jaime C. ^{[1
]}

Liu, Lei

Regev, Oren

机构：

[1] Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA

[2] Ben Gurion Univ Negev, Dept Chem Engn, IL-84105 Beer Sheva, Israel

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2008年 / 317卷 / 01期

关键词：

pH-responsive; nanotube; dispersion; polyelectrolyte; Cryo-TEM; viscosity;

D O I：

10.1016/j.jcis.2007.08.057

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：346 / 349

页数：4

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