Process for preparation of hard and porous polyvinylalcohol gels

Details Process for preparation of hard and porous polyvinylalcohol gels Process for preparation of hard and porous polyvinylalcohol gels

1976-12-01

1978-08-01

Anderson, Harold D.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

526 9, 526 10, 210 31C, 260 296B, 521 63, 521141, C08J 900

Patent

active

041042085

ABSTRACT:
A process for the preparation of hard and porous polyvinylalcohol gels for aqueous gel permeation chromatography, comprises suspension-polymerizing vinyl acetate with diethylene glycol dimethacrylate or glycidyl methacrylate in the presence of a diluent which controls pore size of the product as a crosslinking agent, saponifying the resulting porous polyvinyl acetate gel with an alkali, and subjecting the resulting porous polyvinylalcohol gel to post-crosslinking with epichlorohydrin.

REFERENCES:
patent: 3640734 (1972-02-01), Oppenheimer et al.
patent: 3896092 (1975-07-01), Epton et al.

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