| 摘要 |
An ion conducting polymeric composition mixture comprises a copolymer of styrene and vinylbenzyl-Rs. Rs is selected from the group consisting of imidazoliums, pyridiniums, pyrazoliums, pyrrolidiniums, pyrroliums, pyrimidiums, piperidiniums, indoliums, and triaziniums. The composition contains 10%-90% by weight of vinylbenzyl-Rs. The composition can further comprise a polyolefin comprising substituted polyolefins, a polymer comprising cyclic amine groups, a polymer comprising at least one of a phenylene group and a phenyl group, a polyamide, and/or the reaction product of a constituent having two carbon-carbon double bonds. The composition can be in the form of a membrane. In a preferred embodiment, the membrane is a Helper Membrane that increases the faradaic efficiency of an electrochemical cell into which the membrane is incorporated, and also allows product formation at lower voltages than in cells without the Helper Membrane. |
| 主权项 |
1. An anion-conducting polymeric membrane comprising a polymer blend or mixture of a copolymer consisting essentially of styrene and vinylbenzyl-Rs with at least one polymeric constituent selected from the group consisting of:
(a) a linear or substituted non-aromatic polyolefin; (b) a polymer comprising uncharged cyclic amine groups; (c) a polymer, excluding polystyrene, comprising at least one of a phenylene group and a phenyl group; (d) a polyamide; and (e) the reaction product of styrene and vinylbenzyl-Rs monomers with a crosslinking monomer having two carbon-carbon double bonds,wherein Rs is a positively charged cyclic amine group and the copolymer contains 10%-90% by weight of vinylbenzyl-Rs based upon the total weight of the copolymer, wherein the total weight of said at least one polymeric constituent in the membrane is less than the weight of the copolymer in the membrane, and wherein said polymeric membrane enables a carbon monoxide selectivity of at least 50%. |
