Polymer packing material for liquid chromatography and a produci

Details Polymer packing material for liquid chromatography and a produci Polymer packing material for liquid chromatography and a produci

1998-09-15

1999-11-23

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 63, 521 64, C08J 928

Patent

active

059901829

ABSTRACT:
A method of producing a polymer packing material for liquid chromatography includes the steps of swelling seed polymer particles to form swelled particles, polymerizing monomers in the swelled particles under existence of diluent, and removing the diluent to form porous polymer particles, wherein the step of polymerizing the monomers is conducted under existence of a compound having a conjugated double bond not reactive with the monomers and having a molecular weight of 100-500. Alternatively, the polymerization process may be conducted by an oxidation reduction polymerization process. Further, the porous polymer particles obtained after removal of the diluent may be subjected to a heat treatment process at a temperature of 100.degree. C. or higher.

REFERENCES:
patent: 5130343 (1992-07-01), Frechet et al.
patent: 5231415 (1993-07-01), Harris

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