Provided is a chromatography stationary phase having an excellent molecule discriminating ability. Specifically, provided is a chromatography stationary phase including a carrier carrying a copolymer that has a pyrrolidone backbone or a piperidone backbone, and an imide backbone in a repeating unit of the main chain.

The present invention discloses a biomass intelligent fiber-based amphoteric multifunctional adsorptive material and a preparation method and use thereof. The material is obtained by using a stepwise dual-temperature stimuli-responsive biomass intelligent fiber as a matrix, a crown ether-modified amphoteric hyperbranched polyamine as a functional reagent, and by using a crosslinking agent to directly crosslink and combine the stepwise dual-temperature stimuli-responsive biomass intelligent fiber with the crown ether-modified amphoteric hyperbranched polyamine in one step. The material has a stepwise dual-temperature stimuli-response, high densities of amino group (more than 12 mmol/g) and carboxyl group (5 mmol/g), and nano cavities.

Disclosed is a method for making a composite material, which is of particular use in wound treatment. The composite material has a hydrophilic polyurethane foam material with a first polyurethane polymer; a hydrophilic fiber material having a second polymer, wherein said second polymer is not a polyurethane polymer and wherein said fiber material is capable of absorbing and retaining a fluid. The first polymer is covalently bonded to the second polymer.

The invention concerns methods of removing undesirable molecules from the blood or physiologic fluid; said method comprising contacting said blood or physiologic fluid with a sorbent, said sorbent comprising a plurality of solid forms and comprising a cross-linked polymeric material having a plurality of ligands attached to the surface of said cross-linked polymeric material, comprising (i) zwitterionic moieties, (ii) oligo(ethylene glycol) moieties or (iii) mixtures thereof; said contacting comprising said sorbent sorbing a plurality of said undesirable molecules when said sorbent is administered within a patient's body.

A method for producing porous particles of a cross-linked polymer, and porous particles that can be produced according to the method are disclosed. The porous particles of a crosslinked hydroxy- or amino-group-containing polymer have a relatively low swelling factor. A composite material contains the porous particles dispersed in a continuous aqueous phase. The porous particles, or the composite material, are used for purifying organic molecules and for bonding metals from solutions. A filter cartridge contains the porous particles of a cross-linked polymer or the composite material.

A superabsorbent polymer according to the present invention has excellent initial absorption properties, and thus it may be used in sanitary materials such as diapers, etc., thereby exhibiting excellent performances.

The present disclosure relates to charge-bearing polymeric materials and methods of their use for purifying fluid samples from micropollutants, such as anionic micropollutants.

The present invention relates to composite materials useful for purifying proteins obtained from biological feedstocks. The composite materials of the invention comprise a porous support having an average pore size of 5 to 500 nm, said porous support being filled with a first polymer which is cross-linked, and a second polymer which is not crosslinked and is covalently bonded to the external surface of the cross-linked polymer-filled porous support.

The present invention relates to a super-absorbent polymer having excellent properties, both centrifugal retention capacity (CRC) and absorption under pressure (AUP) having been improved by introducing a surface crosslinked layer crosslinked by surface-modified inorganic particles, and to a method for preparing the same. The super-absorbent polymer comprises: a base resin powder containing a crosslinked polymer of water-soluble ethylene-based unsaturated monomers having an at least partially neutralized acidic group; and a surface crosslinked layer formed on the base resin powder, wherein inorganic particles may be chemically bound to the crosslinked polymer contained in the surface crosslinked layer, via an oxygen-containing bond or a nitrogen-containing bond.

The invention is directed to utilization of a series of cross-linked 1,4-benzenediamine-co-alkyldiamine polymers and the use of the polymers to remove mercury from a hydrocarbon in fluid form.