4 results about "Reactive polymer" patented technology

In some aspects, the present disclosure pertains to systems for forming hydrogels that comprise: (a) a reactive multi-functional compound comprising (i) a residue of a polyol that comprises two or more hydroxyl groups and (ii) a plurality of activated ester groups, each of which is linked to the polyol residue through a residue of a cyclic anhydride and (b) a reactive polymer comprising a plurality of nucleophilic groups that are reactive with the plurality of activated ester groups of the reactive multi-functional compound. In other aspects, the present disclosure provides methods of treatment comprising administering to a subject a mixture of the reactive multi-functional compound and the multi-arm polymer to a patient. In other aspects, the present disclosure provides crosslinked hydrogels that are formed from the reactive multi-functional compound and the multi-arm polymer.

In some aspects, the present disclosure pertains to systems that comprise (a) a reactive polymer comprising a plurality of first hydrophilic polymer segments and a plurality of first reactive moieties, (b) a reactive multifunctional compound comprising a plurality of second reactive moieties, and (c) gold nanoparticles that are functionalized with a plurality of second hydrophilic polymer segments. In other aspects, the present disclosure pertains to crosslinked reaction products formed from such systems. In further aspects, the present disclosure pertains to methods of treatment using systems and such crosslinked reaction products.

Chromatography columns are disclosed. The column includes a coating on an inner surface. The coating on the inner surface includes a cross-linkable reactive polymer and ionic functional groups. The cross -linkable reactive polymer has one or more functional groups that are attached to the inner surface. Chromatography systems including columns are disclosed. Methods of adjusting the selectivity of chromatography columns with ionic functional groups are also disclosed.

A method for forming film includes the following steps: controlling a temperature of a workpiece in a chamber, so that a gaseous state sacrificial material desublimates into solid state on a surface of the workpiece to form a solid state sacrificial material layer; controlling a pressure in the chamber and the temperature of the workpiece, so that the solid state sacrificial material layer starts gradually sublimating into gaseous state; providing reactive polymer monomers into the chamber, so that the reactive polymer monomers start being deposited on the solid state sacrificial material layer through an adsorption process, and a polymerization reaction of the reactive polymer monomers is initiated, at the same time, the solid state sacrificial material layer continues gradually sublimating into gaseous state until completely sublimating into gaseous state, and the reactive polymer monomers form a polymer layer deposited on the surface of the workpiece.