Accession Number:

AD1067211

Title:

Self-Assembly of Multifunctional, Adaptive Nanomaterials

Descriptive Note:

[Technical Report, Final Report]

Corporate Author:

Ohio State University

Personal Author(s):

Report Date:

2018-09-22

Pagination or Media Count:

70

Abstract:

The long-term goal of this research is to understand how the collective structural features of noncovalently assembled systems can be used to create dynamic, stimuli-responsive systems that change color and structure upon light exposure. During the first two years as part of Aim 1, we have installed light-responsive molecular dyes, such as spiropyrans and dithienylethylenes, into the monomers of the nanostructures to allow light-triggered, local perturbations to disrupt the ability of the dye to efficiently participate in intermolecular -stacking interactions. We have also crosslinked the nanotubenanofiber assemblies via photoinduced polymerization of diacetylene. This polymerization produced colored nanostructures that were stable to solvent conditions but reversibly change color with temperature. For Aim 3, we have templated gold nanoparticles onto the nanotubes, as part of a strategy to create light-modulated nanoparticle arrays. A very exciting development, that allows us to co-assemble a nanotube with two polymers into a single co-axial nanotubes with optoelectronic polymers on the surface. Thus, we will exploit this strategy to prepare photoresposive nanotubepolymer co-assemblies to more efficiently create light responsive nanomaterials. We expect that this work will ultimately contribute to the militarys need for strong, camouflage materials with capabilities that respond colorimetrically and structurally to extrinsic input. The long-term goal of this research is to understand how the collective structural features of noncovalently assembled systems can be used to create dynamic, stimuli-responsive systems that change color and structure upon light exposure.

Subject Categories:

  • Miscellaneous Materials
  • Electrooptical and Optoelectronic Devices

Distribution Statement:

[A, Approved For Public Release]