Perfluoropolyether copolymers for biomedical applications
AssigneeAxoft, Inc.
InventorsFoad Vashahi, Andrew Robert Spencer, Paul Claude Henri Le Floch, Iraklis Kourtis
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Abstract
Compositions and cross-linked polymer networks including at least one soft fluoropolymer segment and at least one hard fluorinated polymer segment which are covalently bonded through a linking moiety are provided. Methods of making the compositions and networks, and devices that incorporate them are also provided. The polymer networks may be designed to exhibit specific mechanical or physical properties which are tunable through by synthetic techniques including variation in the number and/or identity of the hard fluorinated polymer segments and soft fluoropolymer segments.
Claims41
A composition comprising:
- at least one soft fluoropolymer segment;
- and
- at least one hard fluorinated polymer segment;
- and
- wherein the at least one soft fluoropolymer segment and the at least one hard fluorinated polymer segment are covalently bound through a linking moiety comprising at least two reactive groups.
A polymer network comprising:
- soft fluoropolymer segments;
- and
- hard fluorinated polymer segments;
- and
- wherein the soft fluoropolymer segments and the hard fluorinated polymer segments are covalently bound through a linking moiety comprising at least two reactive groups;
- and wherein the soft fluoropolymer segments are connected through cross-linkers.
A method of making a polymer network comprising:
- providing at least one soft fluoropolymer comprising reactive end groups;
- attaching a linking moiety through the reactive end groups of the at least one soft fluoropolymer to form a linkable soft fluoropolymer segment;
- polymerizing a fluorinated moiety to form a hard fluorinated polymer segment comprising reactive end groups;
- covalently bonding the linkable soft fluoropolymer segment to the hard fluorinated polymer segment comprising reactive end groups to form a hard- and soft-segmented fluorinated polymer composition;
- reacting the hard- and soft-segmented fluorinated polymer composition with a cross-linkable moiety to form a hard- and soft-segmented fluorinated polymer composition with cross-linkable end groups;
- and
- cross-linking the hard- and soft-segmented fluorinated polymer composition with cross-linkable end groups to form the polymer network.
Dependencies are inferred from the claim text.