Macroporous polymeric sorbents for chromatography, especially ga

Details Macroporous polymeric sorbents for chromatography, especially ga Macroporous polymeric sorbents for chromatography, especially ga

1976-07-15

1979-01-23

Adee, John

Gas separation

Means within gas stream for conducting concentrate to collector

55386, B01D 1508

Patent

active

041358929

ABSTRACT:
The invention relates to macroporous polymeric sorbents prepared by ternary copolymerization of polar monomers, namely hydroxyalkyl acrylates and methacrylates (hydroxyalkyl C.sub.1-6), in the amount of 1 - 70 wt.%, with 30 - 90 wt.% of nonpolar comonomers, namely alkyl acrylates and methacrylates (alkyl C.sub.1-18), and 20 - 80 wt.% of crosslinking agents, namely alkylene diacrylates and dimethacrylates (alkylene C.sub.1-6). The sorbents were prepared by the suspension copolymerization in the presence of inert organic solvents and surfactants in the single step without further chemical modification and their polarity was controlled in a broad region. They are especially suitable for gas-chromatographic separation of organic compounds, as hydrocarbons, alcohols, organic acids and nitrogen-containing heterocyclic compounds. Their preparation in one step is more simple and economical than modification of the polymeric matrix by polymeranalogous reactions which has been used for this purpose until present time.

REFERENCES:
patent: 3458976 (1969-08-01), Hollis
patent: 3478886 (1969-11-01), Hornbeck
patent: 3808125 (1974-04-01), Good
patent: 3891412 (1975-06-01), Dave
patent: 3925267 (1975-12-01), Coupek et al.

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