US 12,247,152 B2
Fabrication of luminescent quantum dot thiol-yne nanocomposites with tailorable optical, thermal and mechanical properties
Darryl A. Boyd, Alexandria, VA (US); Michael H. Stewart, Springfield, VA (US); Kimihiro Susumu, Alexandria, VA (US); Eunkeu Oh, Alexandria, VA (US); and James P. Wissman, Hyattsville, MD (US)
Assigned to The Government of the United States of America, as represented by the Secretary of the Navy, Arlington, VA (US)
Filed by The Government of the United States of America, as represented by the Secretary of the Navy, Arlington, VA (US)
Filed on Jun. 30, 2021, as Appl. No. 17/363,526.
Application 17/363,526 is a division of application No. 16/153,357, filed on Oct. 5, 2018, granted, now 11,180,696.
Claims priority of provisional application 62/570,878, filed on Oct. 11, 2017.
Prior Publication US 2021/0324269 A1, Oct. 21, 2021
Int. Cl. C09K 11/88 (2006.01); C07C 323/60 (2006.01); C07D 339/04 (2006.01); C08F 138/00 (2006.01); C09K 11/02 (2006.01)
CPC C09K 11/886 (2013.01) [C07C 323/60 (2013.01); C07D 339/04 (2013.01); C08F 138/00 (2013.01); C09K 11/02 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method of making a transparent luminescent quantum dot thiol-yne nanocomposite, comprising the steps of:
making a functionalized Quantum Dot (QD) with a ligand, comprising the steps of:
mixing QDs with a chloroform solution comprising synthesized ligands to functionalize the QDs forming functionalized QDs; and
suspending the functionalized QDs in 1.5 uM solution of chloroform forming a functionalized QD solution;
preparing a thiol-yne prepolymer by combining 1 mole equivalent of one selected from the group consisting of monovinyl, monoalkynyl, polyvinyl, polyalkynyl, and combinations thereof with 1 mole equivalent of one selected from the group consisting of monothiol, polythiol, and combinations thereof;
mixing the thiol-yne prepolymer and the functionalized QD solution;
agitating the thiol-yne prepolymer and the functionalized QD solution; and
polymerizing the thiol-yne prepolymer and the functionalized QD solution;
wherein the resulting nanocomposites are transparent and luminescent; and
wherein the thiol-yne prepolymer is prepared by combining 1 mole equivalent of tetrathiol pentaerythritol tetrakis (3-mercaptopropionate) (PETMP) with 1 mole equivalent of dialkyne 1,7-octadiyne (ODY).