Unsaturated polymer electrolytes, and methods for producing and using same in electrochemical applications

A polymer comprising repeating units of Formula 1:

• wherein,
• R1 and R2 are independently and at each occurrence selected from a hydrogen atom and an optionally substituted C1-3alkyl group, preferably R1 is a hydrogen atom, more preferably R1 and R2 are both hydrogen atoms;
• R3, R4, R5, and R6 are independently and at each occurrence selected from a hydrogen atom, a halogen atom (such as F and Cl), and an optionally substituted C1-12alkyl group;
• L1 and L2 are selected from C2-C6alkylene, C(O)C1-C6alkylene, C1-C6alkyleneC(O), C(O)C2-C6alkyleneC(O), (C2-C6alkyleneO)1-12C2-C6alkylene, C(O)(C2-C6alkyleneO)1-12C2-C6alkylene, (C2-C6alkyleneO)1-12C2-C6alkyleneC(O), C(O)(C2-C6alkyleneO)1-12C2-C6alkyleneC(O) groups, polyether, polyester, polycarbonate chains, and copolymer of at least two units selected from alkyl ethers, esters, and carbonates, preferably L2 is a (C2-C6alkyleneO)1-12C2-C6alkylene group (e.g., diethylene glycol, triethylene glycol, tetraethylene glycol, etc.);
• X1, X2, X3, and X4 are independently and at each occurrence selected from O, NH, NR, and Sa preferably X3 and X4 are independently and at each occurrence selected from O and NH, preferably O;
• or X1 is a —N(R)— group and L1, X2 are absent, wherein R is selected from polyether, polyester, polycarbonate chains, and a copolymer of at least two units selected from alkyl ethers, esters, and carbonates;
• and
• represents a bond to a hydrogen atom, to another repeating unit of the polymer, or to a terminal group.