Packing material for liquid chromatography and method for the pr

Details Packing material for liquid chromatography and method for the pr Packing material for liquid chromatography and method for the pr

1985-12-26

1987-08-11

Michl, Paul R.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

428402, 521 38, C08F 1236

Patent

active

046862692

ABSTRACT:
A packing material for liquid chromatography comprising monovinyl aromatic monomer and divinyl or polyvinyl aromatic monomer is disclosed, wherein, in gel permeation chromatography, exclusion limit molecular weight is not less than 1.times.10.sup.3 in terms of standard polystyrene, average particle diameter lies within a rage of 0.5 to 50 .mu.m and the constitution rate of divinyl or polyvinyl aromatic monomer in copolymer particles is not less than 60% by weight, and a method for the preparation thereof is claimed, wherein suspension polymerization is carried out in a mixed aqueous solution containing organic colvent which dissolves whole monomer containing not less than 60% by weight of divinyl or polyvinyl aromatic monomer in whole monomer by amounts of 50 to 300% by weight of the solvent to both monomers and does not dissolve the copolymer of these monomers and radical polymerization initiator.

REFERENCES:
patent: 3627708 (1971-12-01), Morse
patent: 4174430 (1979-11-01), Kido
patent: 4338404 (1982-07-01), Tanaka
patent: 4485207 (1984-11-01), Bates

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