CORE-FIRST NANOPARTICLE FORMATION PROCESS, NANOPARTICLE, AND COMPOSITION

摘要

A method is provided for synthesizing a core-shell nanoparticle that includes the following steps: providing a polymeric seed (in a solvent) that includes mono-vinyl monomer cross-liniked with a cross-linking agent to form the core of the nanoparticle, the core has an average diameter of from about nanometers to about 10,000 nanometers, and the core has polymer chains with living ends; adding a stabilizer to stabilize the seed and prevent the seed from precipitating out of solution; and grafting a shell species onto the living ends of the core to form the shell of the nanoparticle. A core-first synthesized nanoparticle, along with a rubber composition and tire product are also provided.

主权项

1. A core-shell nanoparticle comprising:
a core formed from a polymeric seed that includes a mono-vinyl monomer core species cross-linked with a cross-linking agent; the core having an average diameter of from about 5 nanometers to about 125 nanometers; a shell comprising a shell species attached to the core, the shell being substantially uncrosslinked.