CORE-SHELL NANOPARTICLES, METHOD FOR SYNTHESIS AND USE THEREOF Russian patent published in 2015 - IPC C08F257/00 C08F257/02 C08F293/00 C08F297/04 B82B3/00 

FIELD: chemistry.

SUBSTANCE: present invention refers to a method for synthesis of core-shell nanoparticles. What is disclosed is a method for synthesis of core-shell nanoparticles involving the following stages: synthesis of a polymer fuse in a solvent by living anionic dispersion polymerisation; the fuse contains monovinyl monomer cross-linked by a cross-linking agent to form nanoparticle core; the core has an average diameter from 5 nanometres to 10,000 nanometres and contains polymer chains with living terminal groups; a stabilising agent is added to stabilise the fuse and to prevent the fuse deposition from the solution; and shell particles are grafted and/or polymerised on the living core ends to form nanoparticle shells; the fuse is formed by polymerising monovinyl monomer with the use of an initiator and cross linking of the produced polymer with a multivinyl agent cross-linking the monomer. There are also described core-shell nanoparticles containing: a core formed of the polymer fuse, which contains monovinyl monomer core particles cross-linked by a cross-linking agent; the agent has an average diameter from 5 nanometres to 10,000 nanometres; the shell containing the shell particles attached to the core; the shell is mainly non-cross-linked; the fuse is synthesised by living anionic dispersion polymerisation; the fuse is formed by polymerisation of the monovinyl monomer with the use of the initiator and cross linking of the produced polymer with the multivinyl agent cross-linking the monomer. What is also described is a method for producing a rubber composition, adding core-shell nanoparticles produced by the above method, into a vulcanised rubber matrix. What is also described is a method for tyre manufacture, involving producing the core-shell nanoparticles; adding the core-shell nanoparticles into the rubber mixture; moulding the rubber mixture in a tyre tread; and a tyre assembly with the use of the tyre tread.

EFFECT: producing the nanoparticles possessing low viscosity, improved wetting ability and snow cohesion when added to the rubber matrix.

14 cl, 3 dwg, 8 tbl, 24 ex