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US 8,288,457 B2Granted
Block functionalization methods
AssigneeNational Research Council of Canada
InventorsBenoit Simard, Jingwen Guan, Stephane Dénommée
Life of this patent
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Abstract
Epoxy resins are chemically attached to carbon nanotubes (CNTs), in a one-step process in which a reaction mixture comprising the epoxy polymer, the CNTs and a bridging agent which is a chemical compound capable of forming living polymers, e.g. styrene or MMA is formed and radical formation is initiated in the reaction mixture; the epoxy polymer or monomer grafts onto the CNTs through the intermediary block of the bridging agent.
Claims6
A functionalized carbon nanotube composite corresponding to the general formula:
- CNT-[Block 1]-[Block 2]
- wherein CNT represents the carbon nanotube, “Block 1” represents at least 1 monomeric unit derived from an olefin, olefin derivative, lactone or lactam bridging agent, and “Block 2” represents an epoxy resin.
Dependencies are inferred from the claim text.