Method for producing nanoparticle/block copolymer composites and devices containing the same
US8535973B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 6, 2009 |
| Grant date | Sep 17, 2013 |
| Priority date | — |
| Expiry date | Aug 2, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K30/50
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for producing nanoparticle/block copolymer composites is provided. The method includes mixing nanoparticles having an organic ligand L and a block copolymer A-b-B having block repeating units A and B with different solubility parameters in a solvent S to form micelles by self-assembly. The solubility parameters of the organic ligand L, the block repeating units A and B of the block copolymer A-b-B and the solvent S satisfy the following inequalities:29≦δS−δA (1)δS−δB≦29 (2)|δL−δA|≦5 or |δL−δB|≦5 (3)in which δS, δA, δB and δL represent the solubility parameters of the solvent S, the block repeating unit A, the block repeating unit B and the ligand L, respectively. According to the method, the inherent electrical, magnetic, optical, chemical and mechanical properties of the nanoparticles can be maintained or improved without the need to modify the surface of the nanoparticles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.