Heat resistant zwitterionic polymer, antibacterial material including the same, and method of making the same

Abstract

This invention relates to a heat-resistant dual-ionic polymer, an antibacterial material containing the same, and a method for manufacturing the same. The heat-resistant dual-ionic polymer has heat-resistant monomer units, thus exhibiting heat resistance, and its dispersibility in a polymer matrix is ​​excellent, resulting in an antibacterial material with ideal antibacterial properties, yellowness, and whiteness.

Claims

1. A heat-resistant dual-ionic polymer, comprising: a first monomer unit having a structure as shown in Formula 1, Formula 1, wherein R1 represents a straight-chain, branched, or cyclic alkyl group, aromatic group, heteroaryl group, or ester group having 3 to 18 carbon atoms; a second monomer unit having a structure as shown in Formula 2, Formula 2, wherein R2 represents a methyl group, amino group, hydroxyl group, phenyl group, or chloro group, R3 represents COORx, and Rx represents an alkyl group having 1 to 12 carbon atoms; and a third monomer unit having a divalent ethyl group as shown in Formula 3 or a divalent propyl group as shown in Formula 4, Formula 3, Formula 4, wherein R4 represents -COOR' or -CONR"H, R' and R" represent betaine, sulfobetaine, or carboxybetaine, and R5 represents a hydrogen atom or a carboxyl group, wherein... When R5 represents the hydrogen atom, R6 represents -COORa or -CONRbH, Ra and Rb represent betaine, sulfobetaine, or carboxybetaine, and when R5 represents the carboxyl group, R6 represents the cationic group; and a heat-resistant monomer unit having a structure as shown in Formula 5, Formula 5, wherein R7 represents a hydrogen atom, a branched alkyl group having 1 to 18 carbon atoms, a hydroxyl group, an amino group, or a thiol group, wherein based on the molar composition of the heat-resistant dual-ionic polymer, the first monomer unit accounts for 25 to 60 molar percentages, the second monomer unit accounts for 10 to 20 molar percentages, the third monomer unit accounts for 8 to 20 molar percentages, and the heat-resistant monomer unit accounts for 20 to 40 molar percentages.

2. The heat-resistant dual-ionic polymer as claimed in claim 1, wherein R1 represents the ester group having a -COORy structure, and Ry represents a straight-chain, branched, or cyclic alkyl group having 3 to 18 carbon atoms, or an aromatic or heteroaryl group having 5 to 12 carbon atoms.

3. The heat-resistant dual-ionic polymer as claimed in claim 1, wherein R6 represents the cationic group, which is N,N-dimethylammonium ethylamino vinyl, N,N-dimethylammonium propylamino vinyl, N,N-dimethylammonium butylamino vinyl or N,N-dimethylammonium pentylamino vinyl.

4. The heat-resistant dual-ionic polymer as claimed in claim 1, wherein the molecular weight of the heat-resistant dual-ionic polymer is from 25,000 g / mol to 100,000 g / mol.

5. The heat-resistant dual-ionic polymer as described in claim 1, wherein the melting point of the heat-resistant dual-ionic polymer is greater than 110°C to 120°C.

6. A method of manufacturing an antibacterial material, comprising: providing a mixture comprising: 100 parts by weight of a polymer substrate; 0.1 to 0.9 parts by weight of the heat-resistant dual-ionic polymer as described in any one of claims 1 to 5; and performing a processing step on the mixture, wherein the temperature of the processing step is greater than 200°C to 250°C.

7. The manufacturing method as described in claim 6, wherein the polymer substrate comprises polypropylene, polyvinyl chloride, high-density polyethylene, silicone, polycarbonate, polyester, polyurethane and / or polystyrene.

8. The manufacturing method as described in claim 6, wherein the mixture further comprises a plasticizer, an epoxy vegetable oil, a lubricant, and / or a stabilizer.

9. The manufacturing method as described in claim 6, wherein the processing step includes a granulation step and / or a mixing step.

10. An antibacterial material, which is obtained by the manufacturing method described in any one of claims 6 to 9.

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