Polar polymeric sorbent based on glycidyl esters for gas and liq

Details Polar polymeric sorbent based on glycidyl esters for gas and liq Polar polymeric sorbent based on glycidyl esters for gas and liq

1977-12-23

1982-07-20

Adee, John

Liquid purification or separation

Filter

Material

55386, 2101982, 526320, 526321, B01D 1508

Patent

active

043404839

ABSTRACT:
The invention relates to the polar polymeric sorbent applicable in gas and liquid chromatography, which is based on glycidyl esters. The sorbent is formed by the macroporous copolymer containing 3-70% of polymerized monomeric units with epoxy groups, e.g. glycidyl methacrylate or glycidyl acrylate units, and 97-30% of a crosslinking agent, e.g. alkylene dimethacrylate, alkylene diacrylate, hydroxyalkylene dimethacrylate, hydroxyalkylene diacrylate (alkylene containing 1-6 C atoms), or divinylbenzene. The sorbent may further contain up to 30% of polymerized monomeric units containing nitrile groups, e.g. acrylonitrile and methacrylonitrile units. The polarity of sorbent can be further modified, according to the invention, by the reaction with various nucleophilic agents, e.g. water, alcohols, carboxylic acids and their derivatives, ammonia, amines, thioalcohols, acrylonitrile. The sorbent is thermally and mechanically stable and was used for the gas-chromatographic and liquid-chromatographic separation of complex mixtures of compounds. Its polarity was expressed in terms of modified Rohrschneider indices.

REFERENCES:
patent: 3478886 (1969-11-01), Hornbeck
patent: 3925267 (1975-12-01), Coupek et al.
patent: 3935173 (1976-01-01), Ogasawara et al.
patent: 4042645 (1977-08-01), Hirota et al.
patent: 4076921 (1978-02-01), Stol et al.

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