26,29 Long run modifications of this method could include changing the PVP with polyvinylpolypyrrolidone, which can be a highly crosslinked sort of PVP which is insoluble and will be separated in subsequent cure methods with phenol-primarily based remedies. Alternatively, the PVP might be taken out by using ethanol precipitation from https://www.facebook.com/NewTechFind/posts/pfbid0TziLLhy71Gzj4fGXUKbE3PYeFTe7iA3dr8KWckr1uweszvrtmmkT1Wo163JwWVwql