Linker compounds, methods of producing the same and uses thereof
AssigneeShenkar College of Engineering and Design
InventorsElizabeth Amir, Daniel Anavi
Life of this patent
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Abstract
The present disclosure provides a bifunctional linker for coupling at least one functional moiety, preferably a bis-allyl propionic acid (BAPA), to a polymer-containing matrix. Also disclosed by the present disclosure are anhydrides of the bifunctional linker, processes for preparing the bifunctional linker and such anhydride, as well as surfaces, such as cellulose containing matrices, coupled with the bifunctional linker, at times, the latter carrying a functional agent.
Claims12
A modified polymeric fabric comprising:
- a polymeric fabric comprising cellulose;
- and
- a plurality of bifunctional linkers of formula (I):
- where:
- R1 and R2 are each independently vinyl, alkyl vinyl, propargyl, alkyl propagyl, allenyl, or alkyl allenyl;
- R3 is an alkyl;
- X1 and X2 are each independently —O—(CH2)n— or —S—(CH2)n—, where n is independently with respect to X1 and X2 an integer of 1 to 4;
- W is an oxygen atom of the cellulose;
- and
- R5 is alkylene or carbonyl.
A functionalized polymer-containing fabric comprising:
- a polymer-containing fabric comprising cellulose;
- and
- at least one functional agent bound at a surface of the polymer-containing fabric via a bifunctional linker of formula (I):
- where:
- R1 and R2 are each independently vinyl, alkyl vinyl, propargyl, alkyl propagyl, allenyl, and alkyl allenyl;
- R3 is an alkyl;
- X1 and X2 are each independently —O—(CH2)n or —S—(CH2)n, where n is independently with respect to X1 and X2 an integer from 1 to 4;
- R5 is alkylene or carbonyl;
- and
- W is an oxygen atom of the cellulose.
A modified cellulose-containing fabric comprising:
- cellulose fibers;
- and a bis-allyl propionic acid (BAPA) linker covalently bound to an oxygen atom of said cellulose fibers.
A process for modifying a surface of a polymer-containing fabric, the process comprises:
- providing a fabric comprising cellulose,
- wherein the cellulose having, prior to being modified, exposed hydroxyl groups;
- and
- reacting said fabric with a compound of formula (II):
- where:
- R1 and R2 are each independently vinyl, alkyl vinyl, propargyl, alkyl propagyl, allenyl, or alkyl allenyl;
- R3 is an alkyl;
- R5 is alkylene or carbonyl;
- W′ is O;
- and
- X1 and X2 are each independently —O—(CH2)n— or —S—(CH2)n—, where n is independently with respect to X1 and X2 an integer of 1 to 4;
- in the presence of a reaction medium comprising an amine-containing organic compound in a polar aprotic solvent, so as to form an ester linkage or an ether linkage that binds the compound of formula II to the fabric, wherein the ester linkage and the ether linkage are each a reaction product of W and at least one of the exposed hydroxyl groups of the cellulose.
Dependencies are inferred from the claim text.