Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1987-10-09
1991-01-29
Henderson, Christopher
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
210656, 526301, 5263232, 526330, C08F22600
Patent
active
049887866
ABSTRACT:
A hydrophobic crosslinked copolymer havng a pendant group selected from ##STR1## wherein R.sup.1 represents at least one hydrophobic group having a hydrophobic fragmental constant of at least 1.5, which copolymer has a high crosslinking monomer units content, a specific surface area and a specific acetonitrile regain value. The hydrophobic crosslinked copolymer has a high rigidity as well as an excellent mechanical strength and an excellent chemical stability so that the copolymer is useful as a packing for liquid chromatography, particularly reversed phase partition chromatography. This hydrophobic crosslinked copolymer can be advantageously produced by a method in which a crosslinked copolymer having a side chain of small length is first produced, and then a substitution reaction to introduce a hydrophobic group of large length is effected with respect to the side chain of small length.
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Asahi Kasei Kogyo Kabushiki Kaisha
Henderson Christopher
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