PROCESS OF PRODUCTION OF A POLY (LACTIC ACID) AND HIGH MOLAR MASS, AND USE OF POLY (LACTIC ACID) OF HIGH MOLAR MASS

摘要

production process of a high molar mass poly (lactic acid), and use of high molar mass poly (lactic acid). the present invention relates to the process of producing a high molar poly (lactic acid), comprising the steps of: (a) contacting an aqueous solution of lactic acid with at least one ionic liquid in catalytic quantity; (b) adding excess ionic liquid to the reaction medium, under an inert atmosphere; and (c) separating the obtained poly (lactic acid). further, the present invention relates to the use of the high molar mass poly (lactic acid) obtained.