Epoxide-direct grafted halogenated vinyl polymers
AssigneeKoch Membrane Systems, Inc.
InventorJuchui R. Lin
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Abstract
An epoxy or trimethylene ether-direct grafted halogeneated vinyl polymer is prepared by the reaction of an epoxide such as a 5-ethyl, 5'-methyl-hydantoin/epichlorogydrin condensation product with a halogenated vinyl polymer such as polyvinylidene fluoride in the presence of a metal halide catalyst. The ether residue of the epoxide is grafted directly to the first carbon-chain carbon of the halogenated vinyl polymer. The graft polymer compositions are utilized as ultrafiltration and reverse osmosis membranes.
Claims41
A polymer comprising an epoxy-direct grafted halogenated vinyl polymer, in which an ether moiety of an epoxy-direct grafted group is bonded directly to a first carbon-chain carbon of a halogenated vinyl polymer, said first carbon adjacent a second carbon-chain carbon of the halogenated vinyl polymer, said second carbon having bonded directly thereto generally two moieties selected from the group consisting of fluoro, chloro, bromo, iodo, methyl and hydro, provided that said second carbon has bonded directly thereby at least one fluoro, chloro, bromo or iodo moiety.
A polymer comprising a halogenated vinyl trimethylene ether copolymer, in which an ether moiety of a trimethylene containing group is bonded directly to a first carbon-chain carbon of a halogenated vinyl polymer, said first carbon adjacent a second carbon-chain carbon of the halogenated vinyl polymer said second carbon having bonded directly thereto generally two moieties selected from the group consisting of fluoro, chloro, bromo, iodo, methyl and hydro, provided that said second carbon has bonded directly thereto at least one fluoro, chloro, bromo or iodo moiety.
A polymer comprising a fluorinated vinyl trimethylene ether copolymer, in which an ether moiety of a trimethylene containing group is bonded directly to a first carbon-chain carbon of a fluorinated vinyl polymer, said first carbon adjacent a second carbon-chain carbon of the fluorinated vinyl polymer, said second carbon having bonded directly thereto generally two moieties selected from the group consisting of fluoro, chloro, bromo, iodo, methyl and hydro, provided that said second carbon has bonded directly thereto at least one fluoro moiety.
A polymer of the general formula:
- ##STR9## wherein E is ##STR10## and A is selected from the group consisting of:
- ##STR11## wherein X is --F, --C1, --Br, or --I;
- Y is X, --CX.sub.3, or --H;
- n.sub.1 is an integer between 1 and 5,000;
- x is an integer between 1 and 10;
- q is an integer between 1 and 30;
- and
- z is an integer between 1 and 20;
- provided that when the value of x is less than the number of --O and N-- moieties for a given A group, the --O or N-- moieties not bonded to E are OH or NH groups, respectively.
A polymer comprising an epoxide modified fluorinated vinyl polymer, wherein said epoxide modified fluorinated vinyl polymer comprises an epoxy-direct grafted fluorinated vinyl polymer, in which an ether moiety of an epoxy-direct grafted group is bonded directly to a first carbon-chain carbon of a fluorinated vinyl polymer, said first carbon adjacent a second carbon-chain carbon of the fluorinated vinyl polymer, said second carbon having bonded directly thereto generally two moieties selected from the group consisting of fluoro, chloro, bromo, iodo, methyl and hydro, provided that said second carbon had bonded directly thereto at least one fluoro moiety.
A polymer having a formula:
- ##STR12## wherein E is ##STR13## and A is ##STR14## and wherein X is --F, --C1, --Br, or --I;
- Y is X, --CX.sub.3, or --H;
- n.sub.1 is an integer between 1 and 5,000;
- and
- x is an integer between 1 and 10;
- provided that when X is 1, A is ##STR15##
A polymer having a formula:
- ##STR16## wherein E is ##STR17## and A is ##STR18## and wherein X is --F, --C1, --Br, or --I;
- Y is X, --CX.sub.3, or --H;
- n.sub.1 is an integer between 1 and 5,000;
- and
- x is an integer between 1 and 10.
A polymer having a formula:
- ##STR20## wherein E is ##STR21## and A is ##STR22## and wherein X is --F, --C1, --Br, or --I;
- Y is X, --CX.sub.3, or --H;
- n.sub.1 is an integer between 1 and 5,000;
- and
- x is an integer between 1 and 10;
- provided that when x is 1, A is ##STR23##
A method of making an epoxide modified halogenated vinyl polymer reaction product comprising contacting an epoxide with a halogenated vinyl polymer in the presence of a catalyst of an inorganic salt of at least one Group IA or IIA metal.
Dependencies are inferred from the claim text.