Subsequently, The PVAc undergoes a process often known as alcoholysis (or hydrolysis) while in the presence of the Liquor and a solid foundation or acid catalyst. The acetate groups from the PVAc are changed by hydroxyl teams, resulting in the formation of PVA. Paige Glassman is often a chemistry blogger https://www.tjcyindustrialchem.com/news/what-is-pva.html