Research areas: |
|
Year: | 2011 | ||||
---|---|---|---|---|---|---|---|
Type of Publication: | Article | ||||||
Authors: |
|
||||||
Journal: | Journal of Physical Chemistry C | Volume: | 115 | ||||
Number: | 15 | Pages: | 7164-7170 | ||||
Month: | APR 21 2011 | ||||||
Note: | PT: J; TC: 0; UT: WOS:000289403200003 |
||||||
Abstract: | Amphiphilic polymers are often used to disperse nanoparticles in aqueous solution. Polymer adsorption theory predicts that there exists a narrow compositional range of hydrophobic groups on the polymer chain that allows for kinetic stabilization. Too few groups limit polymer adsorption while too many allow aggregation of polymer-coated nanoparticles for lack of entropic repulsion. we experimentally validate and mathematically describe the existence of this compositional range, and the resulting stability window for the first time using a phenoxy-dextran polymer to disperse single-walled carbon nanotubes. The results should provide a theoretical basis for the design of nanoparticle dispersants. |
||||||
© Strano Research Group