Patent ID: 9431677
Filing Date: 2016-08-30
CPC Classification: C08F,C08J,H01M,Y02E

Claim Text:
1. A diblock copolymer of the BA type or a triblock copolymer of the BAB type, wherein: block A is an unsubstituted polyoxyethylene chain having a number-average molecular weight less than or equal to 100 kDa; block B is an anionic polymer that can be prepared from one or more monomers selected from the vinyl monomers and derivatives thereof, said monomers being substituted with an anion (trifluoromethylsulfonyl)imide (TFSI) of the following formula: in which * represents the point of attachment of said anion of formula (I) to said monomer via a covalent bond or a linear alkyl chain having from 1 to 5 carbon atoms.