Fabrication of luminescent quantum dot thiol-yne nanocomposites with tailorable optical, thermal and mechanical properties

Patent metadata

Field	Value
Publication number	US-11180696-B2
Application number	US-201816153357-A
Country	US
Kind code	B2
Filing date	Oct 5, 2018
Priority date	Oct 11, 2017
Publication date	Nov 23, 2021
Grant date	Nov 23, 2021

Abstract

This disclosure concerns a method of making a ligand for Quantum Dot functionalization, a method of making a functionalized Quantum Dot (QD) with a ligand, and a method of making a transparent luminescent quantum dot thiol-yne nanocomposite with tailorable optical, thermal, and mechanical properties. The prepolymer solution and functionalized Quantum Dot can be used in additive manufacturing.

First claim

What we claim is:

1. A method of making a ligand for Quantum Dot functionalization, comprising the steps of:
mixing lipoic acid (LA) and carbonyldiimidazole to form a first mixture;
adding chloroform to the first mixture to form a second mixture;
adding the second mixture to N-(2-aminoethyl)-5-hexynamide and triethylamine in chloroform to form LA-alkyne;
dissolving the LA-alkyne in THF to form a LA-alkyne solution;
adding sodium borohydride to the LA-alkene solution; and
forming DHLA-alkyne.

2. A product of a process of method of making a ligand for Quantum Dot functionalization, comprising the steps of:
mixing lipoic acid (LA) and carbonyldiimidazole to form a first mixture;
adding chloroform to the first mixture to form a second mixture;
adding the second mixture to N-(2-aminoethyl)-5-hexynamide and triethylamine in chloroform to form LA-alkyne;
dissolving the LA-alkyne in THF to form a LA-alkyne solution;
adding sodium borohydride to the LA-alkene solution; and
forming DHLA-alkyne.

3. A ligand represented by the formula:

4. A ligand represented by the formula:

Assignees

• Us Gov Sec Navy

Inventors

• Boyd Darryl A
• Stewart Michael H
• Susumu Kimihiro
• Oh Eunkeu
• Wissman James P

Classifications

• C07D339/04

  having the hetero atoms in positions 1 and 2, e.g. lipoic acid · CPC title

• C09K11/886 Primary

  with rare earth metals · CPC title

• C08G75/23

  Polyethersulfones · CPC title

• C09K11/02

  Use of particular materials as binders, particle coatings or suspension media therefor · CPC title

• C07C323/60

  with the carbon atom of at least one of the carboxyl groups bound to nitrogen atoms · CPC title