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US 11,345,849 B2Granted
Stabilizing styrenic polymer for quantum dots
Assignee3M Innovative Properties Company
InventorsCarl A. Laskowski, Saswata Chakraborty, Wayne S. Mahoney, Guy D. Joly, Michael C. Palazzotto
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Abstract
The present disclosure provides a composite particle that includes: a fluorescent semiconductor core/shell nanoparticle (preferably, nanocrystal); and a stabilizing homo-copolymer combined with the core/shell nanoparticle, the stabilizing (co)polymer comprising styrene monomer units and functionalized with phosphine, arsine or stibine groups.
Claims15
A composite particle comprising a fluorescent core/shell nanoparticle and a stabilizing (co)polymer of the formula:
- wherein
- each R1 is a hydrocarbyl group including alkyl, aryl, alkaryl and aralkyl;
- each R3 is a hydrocarbyl group including alkyl, aryl, alkaryl and aralkyl;
- each R6 is H, a hydrocarbyl group or a functional group;
- R7 is a divalent hydrocarbyl group selected from alkylene, arylene, alkarylene and aralkylene;
- R8 is the residue of an initiator, which may be functional or non-functional;
- Z is P, As or Sb;
- subscript a is 1 to 100;
- subscript b is 0 to 100.
6 more elements
Dependencies are inferred from the claim text.