Patent ID: 11962035
Assignee: CALB TECHNOLOGY CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C  Y | IPC C  H

Claim 6:
7. A preparation method of a PEO film, wherein the preparation method comprises the following steps:
performing a copolymerization reaction of an ethylene oxide monomer and an F-containing cyclic ether monomer to obtain a polymer precursor containing a structural unit D, wherein the structural unit D is —C2H3F—O— or —R2—C2H3F—O—, wherein R2 is selected from a C1 to C10 linear alkyl group;
performing a F removal treatment on part of the structural unit D of the polymer precursor to form polymer glue containing a structural unit B, performing a film forming treatment on the polymer glue to obtain the PEO film, wherein the structural unit B is —CH═CH—O— or —R1—CH═CH—O—, wherein R1 is selected from a C1 to C10 linear alkyl group or a C2 to C10 linear alkenyl group.