26,29 Foreseeable future modifications of this process could consist of changing the PVP with polyvinylpolypyrrolidone, which happens to be a extremely crosslinked type of PVP that is insoluble and might be separated in subsequent cure measures with phenol-centered answers. Alternatively, the PVP could be taken off via ethanol precipitation with https://www.pinterest.com/pin/993958580252567861/