Method to generate microcapsules with hexahydrotriazine (ht)-containing shells
AssigneeInternational Business Machines Corporation
InventorsDylan J. BODAY, Jeannette M. GARCIA, James L. HEDRICK, Brandon M. KOBILKA, Jason T. WERTZ, Rudy J. WOJTECKI
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Abstract
Materials and methods for preparing a payload-containing microcapsule with walls that have hexahydrotriazine (HT) and/or hemiaminal (HA) structures are disclosed. To an HT small molecule or a HA small molecule, or a combination thereof, in a solvent is added a cross-linking agent, NH4Cl, and a copolymer. The solution is acidified, and a payload agent is added. The HT small molecule and HA small molecule may have orthogonal functionality.
Claims20
A method of making microcapsules, comprising:
- forming a mixture comprising a hemiaminal-based compound, a cross-linking agent, a copolymer, and a solvent;
- acidifying the mixture;
- and
- adding a payload agent.
A method of making microcapsules, comprising:
- forming a mixture comprising an orthogonal-functionalized hemiaminal small molecule, a cross-linking agent, NH4Cl, a copolymer, and a solvent, the orthogonal-functionalized hemiaminal small molecule comprising the structure
- wherein X′ and X″ are each independently selected from the group consisting of —OH, —O—, —NH2, —NH—, —N(R1)H, —N(R1)—, —SH, —S—, —SO2, —OR2, and —R3, and combinations thereof, wherein R1, R2, and R3 independently comprise at least 1 carbon;
- acidifying the mixture;
- and
- adding a payload agent.
A microcapsule, comprising:
- at least one hexahydrotriazine-based compound, hemiaminal-based compound, or a combination thereof;
- and
- at least one component covalently linked to the hexahydrotriazine-based compound, hemiaminal-based compound, or a combination thereof, the at least one component comprising the structure
- wherein X′ and X″ are each independently selected from the group consisting of —OH, —O—, —NH2, —NH—, —N(R1)H, —N(R1)—, —SH, —S—, —SO2, —OR2, and —R3, and combinations thereof, wherein R1, R2, and R3 independently comprise at least 1 carbon.
Dependencies are inferred from the claim text.