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US 12,760,150 B2Granted
Cross-linked polymeric materials, methods of their preparation and uses thereof
AssigneeThe University of British Columbia
InventorsMichael Wolf, Taylor Wright
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Abstract
The present disclosure relates to methods for preparing cross-linked polymeric materials, cross-linked polymeric materials which can be prepared by such methods and uses of such cross-linked polymeric materials, for example, as antibacterial surfaces or coatings. The present disclosure also relates to polymers such as the polymer of the general Formula (III) which can be used, for example, to prepare such cross-linked polymeric materials:
Claims19
A method for preparing a cross-linked polymeric material, the method comprising:
- irradiating a polymer comprising a plurality of aliphatic primary amine moieties or precursors thereto in the presence of oxygen and a sensitizer to form imine cross-links via the oxidative coupling of at least a portion of the aliphatic primary amine moieties and obtain the cross-linked polymeric material,
- wherein prior to irradiation, the method comprises depositing the polymer and the sensitizer on a surface;
- and
- wherein the polymer comprises a polysiloxane comprising the aliphatic primary amine moieties, a polyamide comprising the aliphatic primary amine moieties, a polyester comprising the aliphatic primary amine moieties or a polymethacrylate comprising the aliphatic primary amine moieties.
1 more element
A method for preparing a cross-linked polymeric material, the method comprising:
- irradiating a polymer comprising:
- a polymer chain comprising a plurality of aliphatic primary amine moieties or precursors thereto as side-chains;
- and
- a sensitizer coupled to the polymer chain via a moiety obtained from reaction of an aliphatic primary amine moiety with an amine-reactive group on the sensitizer,
- in the presence of oxygen to form imine cross-links via the oxidative coupling of at least a portion of the aliphatic primary amine moieties and obtain the cross-linked polymeric material,
- wherein prior to irradiation, the method comprises depositing the polymer on a surface;
- and
- wherein the polymer chain comprises a polysiloxane, a polyamide, a polyester or a polymethacrylate.
5 more elements
Dependencies are inferred from the claim text.