Hybrid partice composite structures with reduced scattering
AssigneeCarnegie Mellon University
InventorsKrzysztof Matyjaszewski, Lindsay Bombalski, Michael R. Bockstaller
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Abstract
A core-shell composite particle for incorporation into a composite wherein the composite has improved transparency is disclosed. The core-shell composite particle includes a core material having a first refractive index and a shell material having a second refractive index where the core-shell particle has an effective refractive index determined by the first refractive index and the second refractive index. The effective refractive index is substantially equal to the refractive index of the envisioned embedding medium. Methods of forming the core-shell particles are also disclosed.
Claims26
A core-shell composite particle comprising:
- a core material having a first refractive index;
- and
- a shell material having a second refractive index different from the first refractive index,
- wherein the core-shell composite particle has an effective refractive index determined by the first refractive index and the second refractive index, wherein the effective refractive index is substantially equal to a refractive index of a targeted embedding medium.
A process for forming a core-shell composite particle comprising:
- providing a core material having a surface comprising surface functionality comprising radically transferable atoms or groups;
- and
- grafting a (co)polymer shell material from at least a portion of the surface of the core material by a controlled radical (co)polymerization process,
- wherein the core-shell composite particle has an effective refractive index determined by a refractive index of the core material and a refractive index of the (co)polymer shell material that is substantially equal to a refractive index of a targeted embedding medium.
Dependencies are inferred from the claim text.