Functionalized thermoplastic polyurethane, method for producing same, method for producing highly functional medical composite material using same, and medical device including same
AssigneeI-Sens, Inc.
InventorsHyunseo Shin, Bona Yang, Young Jea Kang, Geunhee Kang
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Abstract
The present invention pertains to: a functionalized thermoplastic polyurethane containing a novel chain extender having functionality capable of chemically bonding to a prepolymer polymerized by reacting a polyol (P) with a diisocyanate (R); a functional composite material containing one or more monomers or polymers selected from the group consisting of an anionic functional group, an amphoteric functional group, a perfluorinated compound, a hydrogel, and a silicone polymer; a method for producing same; and an article including same.
Claims2
A method for preparation of a functionalized thermoplastic polyurethane, comprising
- (a) reacting a polyol (P) and a diisocyanate (R) to polymerize a pre-polymer;
- and
- (b) reacting the pre-polymer polymerized in the (a) with a chain extender comprising a functional group (Fn) to prepare a functionalized thermoplastic polyurethane,
- wherein the functionalized thermoplastic polyurethane copolymer is represented by Chemical formula 1 below:
- in the Chemical formula 1,
- Fn is selected from the group consisting of
- L is —O—;
- and
- E is ethyl;
- and
- P is a polyol;
- and
- R is a diisocyanate;
- and
- x is an integer of 2 to 50;
- and
- y is an integer of 2 to 100;
- the polyol is one or more kinds selected from the group consisting of polyethyleneglycol (PEG), polypropyleneglycol (PPG), polytetramethyleneglycol (PTMG), poly (1,6-hexamethylene carbonate)diol (PHMCD), polydimethyl siloxane (PDMS), and combinations thereof;
- the mean molecular weight of each polyol (P) is 400 g/mol to 10,000 g/mol;
- the diisocyanate (R) is one or more kinds selected from the group consisting of 4,4′-dicyclohexylmethane diisocyanate (HMDI), 4,4′-diphenylmethane diisocyanate (MDI), and hexamethylene diisocyanate;
- wherein a chain extender of Chemical formula 2 below is introduced:
- the chain extender is selected from the group consisting of Chemical formulas 15 to 18 below:
Dependencies are inferred from the claim text.