26,29 Potential modifications of this method could consist of changing the PVP with polyvinylpolypyrrolidone, which can be a very crosslinked sort of PVP which is insoluble and may be separated in subsequent cure techniques with phenol-based alternatives. Alternatively, the PVP may be removed by means of ethanol precipitation with the https://www.facebook.com/NewTechFind/posts/pfbid02UjrED4uibpMcqVtd7zQEJQQijEiStER9T75Z5GJEhDLifnY9AGWjpJStbvaSr1pel