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US 9,061,254 B2Granted
Block copolymers, their manufacture and their use
AssigneeKraton Polymers U.S. LLC
InventorsCarl L. Willis, Adrie A. van der Huizen
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Abstract
A functionalized block copolymer polymerized using vinylbenzylamino derivative monomers for use in such applications as anionic exchange membranes.
Claims18
A process for preparing an amino-functionalized block copolymer comprising:
- in an inert hydrocarbon solvent and in the presence of an initiator,
- (a) polymerizing a hard end block A, the block A having a melting temperature of at least about 20° C.;
- (b) polymerizing a soft interior block B, the B block having a Tg of at most 20° C.;
- (c) polymerizing a block D from a plurality of p-vinylbenzylamino derivative monomers, the p-vinylbenzylamino derivative monomers capable of being polymerized at a temperature range of from 20° C. to 60° C.;
- thereby forming a block polymer or a living block polymer comprising the blocks A, B and D.
2 more elements
Dependencies are inferred from the claim text.