Raft agents and their use in the development of polyvinylpyrrolidone grafted nanoparticles
AssigneeUniversity of South Carolina
InventorsLei Wang, Brian C. Benicewicz
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Abstract
Nanoparticles having a plurality of PVP chains covalently bonded to a surface of the nanoparticle are provided, along with their methods of formation and the RAFT agents for the polymerization of the PVP chains. RAFT agents are generally provided, along with their methods of formation and use. Methods are also generally provided for grafting a PVP polymer onto a nanoparticle. In one embodiment, the method includes: polymerizing a plurality of monomers in the presence of a RAFT agent to form a polymeric chain covalently bonded to the nanoparticle.
Claims11
A RAFT agent having the formula:
- where
- R1 is H or a C1 to C5 alkyl group;
- R2 is CN, NO2, SO3H, or a halogen;
- R3 is a hydroxyl group, a thioazoline group, or OR4 with R4 being a C1 to C5 alkyl group;
- and
- n is 1 to 12.
A RAFT agent having the formula:
A RAFT agent having the formula:
- Where
- R1 is H or a C1 to C5 alkyl group;
- R2 is CN, NO, SO3H, or a halogen;
- and
- n is 1 to 12.
Dependencies are inferred from the claim text.