Preparation of the layer-by-layer assembled materials from...

Details Preparation of the layer-by-layer assembled materials from... Preparation of the layer-by-layer assembled materials from...

2003-06-06

2008-10-21

Miggins, Michael C (Department: 1794)

Coating processes

Immersion or partial immersion

C427S314000, C427S002100, C427S171000, C427S299000

Reexamination Certificate

active

07438953

ABSTRACT:
A method for the assembly of a thin film containing highly anisotropic colloids that includes the steps of immersing a substrate in a first solution or dispersion comprising a first substance, wherein the first substance has an affinity for the substrate. Then, immersing the substrate in a second solution or dispersion comprising a second substance, wherein the second substance has an affinity for the first substance. A least one of the first substance and the second substance is a highly anisotropic colloid having at least one dimension differing from the others by a ratio of at least 1:1.5. The method incorporates highly anisotropic colloids using a layer-by-layer process that circumvents the tendency for separation of nanotubes at high nanotube loadings. Additionally, the method incorporates aligned highly anisotropic colloids and provides a method for carbon nanotube alignment, which among other advantages makes possible the preparation of unique criss-crossed composites.

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