Gel permeation chromatographic packing and process for producing

Details Gel permeation chromatographic packing and process for producing Gel permeation chromatographic packing and process for producing

1981-01-26

1982-07-06

Levin, Stanford M.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

210635, 526336, C08J 916

Patent

active

043384048

ABSTRACT:
A novel granular crosslinked copolymer suitable as a high speed liquid chromatograph packing and especially as a gel permeation chromatograph packing is disclosed. In a preferred embodiment of the invention the packing is a copolymer of styrene and divinylbenzene having a volume average particle diameter of about 2 to 50 .mu.m, an exclusive molecular weight for a polystyrene being from about 500 to 20,000, and the weight % (X) of divinylbenzene units based on the entire monomeric units of the copolymer and the gradient (.alpha.) of the calibration curve of the polystyrene are defined by the region bounded by and including the following three lines in rectangular coordinates (.alpha., X) ##EQU1##

REFERENCES:
patent: 3322695 (1967-05-01), Alfrey et al.
patent: 3326875 (1967-06-01), Moore
patent: 4174430 (1969-11-01), Kido et al.

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