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US 2013/0280620 A1Published application
Halogen copolymers comprising at least one repetitive vinyl ether unit having one carbonate pendant group
AssigneesCommissariat A L'energie Atomique Et Aux Energies Alternatives, Centre National De La Recherche Scientifique
InventorsHervé Galiano, Bruno Ameduri, Bernard Boutevin, Ali Alaaeddine
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Abstract
This invention concerns copolymers that may be used for incorporation into electrolytic membranes for lithium generators, comprising at least one vinyl ether repetitive motif comprising a pendant cyclic carbonate group.
Claims14
Copolymer comprising at least one repetitive unit having the following formula (I):
- in which:
- R1, R2, R3, and R4 represent, independently of one another, a hydrogen atom, a halogen atom, a perfluoroalkyl group or a perfluoroalkoxy group, provided that at least one of the R1-R4 groups represents a halogen atom, a perfluoroalkyl group, or a perfluoroalkoxy group,
- and comprising at least one repetitive unit having the following formula (II):
- in which:
- R5, R6, R7 represent, independently of one another, a hydrogen atom, an alkyl group;
- Z is a single bond or an alkylene group;
- X is an alkylene group or a perfluoroalkylene group;
- and
- R8 is a cyclic carbonate group.
6 more elements
Method for preparing a copolymer comprising at least one repetitive unit having the following formula (I):
- in which:
- R1, R2, R3, and R4 represent, independently of one another, a hydrogen atom, a halogen atom, a perfluoroalkyl group or a perfluoroalkoxy group, provided that at least one of the R1-R4 groups represents a halogen atom, a perfluoroalkyl group, or a perfluoroalkoxy group,
- and comprising at least one repetitive unit having the following formula (II):
- in which:
- R5, R6, R7 represent, independently of one another, a hydrogen atom, an alkyl group;
- Z is a single bond or an alkylene group;
- X is an alkylene or perfluoroalkylene group;
- and
- R8 is a cyclic carbonate group,
- said process consisting in a radical polymerisation method comprising a step of polymerisation in the presence of a free radical initiator and at least one monomer of formula (X) below:
- and at least one monomer of formula (XI) below:
- in which R1, R2, R3, R4, R5, R6, R7, R8, X, and Z are as defined above.
9 more elements
Dependencies are inferred from the claim text.