Subsequently, The PVAc undergoes a procedure generally known as alcoholysis (or hydrolysis) in the existence of an alcohol and a solid foundation or acid catalyst. The acetate groups during the PVAc are changed by hydroxyl groups, bringing about the formation of PVA. Multi-laboratory evaluation on the reproducibility of polymer biodegradation https://www.tjcyindustrialchem.com/news/what-is-pva.html