FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing a grafted polymer and a functionalised non-woven membrane adapted for use in separation processes, and a membrane thus obtained, as well as to separation methods using a membrane. Method of producing a grafted polymer and a functionalised nonwoven membrane adapted for use in capturing a target molecule involves: i) obtaining a nonwoven fabric comprising a plurality of polymer fibres; ii) grafting polymerisation of the acrylate or methacrylate polymer onto a plurality of polymer fibres to obtain multiple polymer segments covalently attached to the fibres, resulting in grafting of the polymer grafted, wherein the graft polymerisation step includes: a) contacting the nonwoven web with a solution containing a thermal free-radical initiator to ensure absorption of the thermal initiator into the nonwoven web, b) contacting the nonwoven web with a solution containing at least one acrylate or methacrylate monomer, and c) heat treatment on the non-woven fabric to initiate polymerisation of the acrylate or methacrylate monomer; and iii) functionalising the fibres grafted with the polymer to attach at least one functional group capable of binding the target molecule to polymer segments of the grafted polymer fibres.
EFFECT: thermally induced grafting of non-woven materials for highly efficient ion-exchange separation is disclosed.
22 cl, 13 dwg, 2 tbl
Title | Year | Author | Number |
---|---|---|---|
ORDERED FILTER MATERIAL FOR BIOMATERIAL PURIFICATION | 2016 |
|
RU2698822C1 |
HYDROGEL | 2003 |
|
RU2341539C2 |
ELECTROSPUN HYBRID NANOFIBRE FELT | 2013 |
|
RU2658909C2 |
PROCESS FOR PRODUCING GRAFTED COPOLYMERS | 0 |
|
SU935512A1 |
METHOD OF PRODUCING SURFACE-GRAFTED POLYMER ON SURFACE OF POLYMER FILM | 2011 |
|
RU2487146C1 |
FILTERING MATERIAL FOR PURIFYING GAS-AIR MIXTURES FROM ACIDIC GASES | 0 |
|
SU1650215A1 |
MATERIAL CONTAINING POLYAZACYCLOALKANES GRAFTED ON POLYPROPYLENE FIBRE, METHOD FOR PRODUCTION THEREOF AND METHOD OF REMOVING METAL CATIONS FROM LIQUID | 2008 |
|
RU2470951C2 |
POROUS PARTICLES OF GRAFT COPOLYMER, THE METHOD OF THEIR PRODUCTION AND ADSORBING MATERIAL, WHICH THEY APPLY | 2013 |
|
RU2647599C2 |
METHOD OF PRODUCING SURFACE-GRAFTED POLYMER COATING | 2007 |
|
RU2371448C2 |
METHOD OF PRODUCING GRAFT COPOLYMERS OF STYRENE ON POLYDIENES | 2012 |
|
RU2478656C1 |
Authors
Dates
2020-03-02—Published
2017-07-17—Filed