| 摘要 |
1499134 Hydrophilic ion exchange resins CESKOSLOVENSKA AKADEMIE VED 12 Feb 1975 [13 Feb 1974] 5983/75 Heading C3P Macroporous hydrophilic ion exchange resins are obtained by alkylation or hydroxyalkylation - of amino groups in a cross-linked hydroxyalkylacrylate or hydroxyalkylmethacrylate copolymer. The amino groups may be introduced into a pre-formed polymer, or provided by including an aminoalkyl - (meth)acrylate or (meth)acrylamide monomer when preparing the polymer. In Examples (1, 2 and 5) a 2- hydroxyethyl methacrylate/diethylaminoethyl methacrylate/ethylene glycol dimethacrylate copolymer is reacted, respectively, with butyl bromide, ethyl bromide and butyl p-toluene sulphonate; (3) a 2-hydroxyethyl methacrylate/ ethylene glycol dimethacrylate copolymer is activated with cyanogen bromide and then reacted sequentially with ethylene diamine, ethylene oxide and ethyl bromide; and (4) the copolymer used in (3) is reacted sequentially with thionyl chloride, polyethylene imino and ethyl bromide. |
