Abstract: A polymer is described herein that includes a plurality of N-J-N or N—C—S repeating units, wherein each J is independently a carbon atom, an alkyl group, or an aryl group; a plurality of hydrophilic groups bonded with the repeating units; and a plurality of hydrophobic groups bonded with the hydrophilic groups and the repeating units. Such polymers may be made into hydrogels by exposure to water, and the hydrogels may be used as delivery vehicles for various payloads.

Abstract: A porous material includes a polyhexahydrotriazine material. Pores in the porous material can be of various sizes including nanoscale sizes. The porous material may be used in a variety of applications, such as those requiring materials with a high strength-to-weight ratio. The porous material can include a filler material dispersed therein. The filler material can be, for example, a particle, a fiber, a fabric, or the like. In some examples, the filler material can be a carbon fiber or a carbon nanotube. A method of making a porous material includes forming a resin including a polyhemiaminal or polyhexahydrotriazine component and a polythioaminal component. The resin can be heated to promote segregation of the components into different phases with predominately one or the other component in each phase. Processing of the resin after phase segregation to decompose the polythioaminal component can form pores in the resin.

Abstract: Eight-membered ring cyclic carbonates having an oxygen or an acylated nitrogen at position 6 were prepared by reaction of precursor diols with ethyl chloroformate. The cyclic carbonates undergo organocatalyzed ring opening polymerization. In one instance, the initial polymer formed comprises a carbonate repeat unit having a Boc-protected nitrogen in the polymer backbone. Deprotecting the nitrogen with acid forms a cationic carbonate repeat unit having a positive charged secondary ammonium nitrogen in the polymer backbone.

Abstract: Methods, compounds, and compositions described herein generally relate to hemiaminal organogel networks (HDCNs) and methods of forming HDCNs. In some embodiments, a hemiaminal organogel has a plurality of first polymers, each having a first end and a second end, a plurality of second polymers, each having a first end and a second end, and a plurality of trivalent aminal-hemiaminal linkages. The first end of each polymer of the plurality of first polymers may be covalently bonded to a first trivalent aminal-hemiaminal linkage. The second end of each polymer of the plurality of first polymers may be covalently bonded to a second trivalent aminal-hemiaminal linkage. The first end of each polymer of the plurality of second polymers may be covalently bonded to one of the plurality of trivalent aminal-hemiaminal linkages. The second end of each polymer of the plurality of second polymers may be non-covalently bonded.

Abstract: Eight-membered ring cyclic carbonates having an oxygen or an acylated nitrogen at position 6 were prepared by reaction of precursor diols with ethyl chloroformate. The cyclic carbonates undergo organocatalyzed ring opening polymerization. In one instance, the initial polymer formed comprises a carbonate repeat unit having a Boc-protected nitrogen in the polymer backbone. Deprotecting the nitrogen with acid forms a cationic carbonate repeat unit having a positive charged secondary ammonium nitrogen in the polymer backbone.