26,29 Foreseeable future modifications of this method could include things like replacing the PVP with polyvinylpolypyrrolidone, and that is a extremely crosslinked method of PVP that is insoluble and can be separated in subsequent cure methods with phenol-based mostly remedies. Alternatively, the PVP could possibly be eradicated by using ethanol https://www.pinterest.com/pin/993958580252568440/