Glycolic acid can be used to prepare high molecular weight polyglycolic acid. Although traditional polymer materials such as pet, PE, PP and PS have brought many conveniences to people's lives and played an important role in social and economic development, they have caused serious "white pollution" due to imperfect recycling and their inability to degrade or degrade in the earth's environment. With the increasing attention of society to environmental protection, various countries and regions have successively issued "plastic restriction orders" to develop degradable The substitution of environment-friendly polymer materials for traditional non degradable polymer materials has become an important research direction.
China
