Block functionalization methods
AssigneeNational Research Council of Canada
InventorsBenoit Simard, Jingwen Guan, Stephane Dénommée
Life of this patent
Estimating the term…
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.
Claims15
A process of chemically attaching epoxy resin monomer or polymer to carbon nanotubes (CNTs) and adjusting the solubility and plasticity of the chemically attached CNT in one reaction step, which comprises:
- forming a reaction mixture comprising the epoxy polymer or monomer, the CNTs and a bridging agent which is a chemical compound that forms living polymers;
- and
- initiating radical formation in the reaction mixture;
- whereby the epoxy polymer or monomer grafts onto the CNTs through the intermediary block of the bridging agent.
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.
The functionalized carbon nanotube composite of claims wherein CNT is a single walled carbon nanotube.
Dependencies are inferred from the claim text.