{
  "$type": "site.standard.document",
  "description": "Disclosed is a preparation method for modified polypropylene, comprising the following steps: dissolving polypropylene in a solvent; and adding a Lewis acid and an initiator into the solution in which the polypropylene is dissolved, and then performing a grafting reaction, to obtain the modified…",
  "path": "/patents/1387741",
  "publishedAt": "2026-01-28T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B29C48/08",
    "JIANGSU ZENERGY BATTERY TECH CO LTD [CN]"
  ],
  "textContent": "Disclosed is a preparation method for modified polypropylene, comprising the following steps: dissolving polypropylene in a solvent; and adding a Lewis acid and an initiator into the solution in which the polypropylene is dissolved, and then performing a grafting reaction, to obtain the modified polypropylene; wherein the Lewis acid is selected from at least one of boron trifluoride diethyl etherate, boron trifluoride methyl ether, boron trifluoride acetic acid and boron trifluoride propionic acid; and the initiator is an organic peroxide initiator. Further disclosed are modified polypropylene prepared by the described method, a separator and a preparation method therefor, and a lithium-sulfur battery. Lewis acid monomers are grafted onto molecules of the modified polypropylene provided in the present disclosure, and therefore the modified polypropylene is suitable for being prepared into a separator of a lithium-sulfur battery, and can improve the electrochemical performance of the lithium-sulfur battery.",
  "title": "MODIFIED POLYPROPYLENE AND A PREPARATION METHOD THEREFOR, A SEPARATOR AND A PREPARATION METHOD THEREFOR, AND A LITHIUM-SULFUR BATTERY"
}