METHOD FOR PRODUCING POLYLACTIC ACID AND A HIGHLY CONDUCTIVE POLYMER, AND APPARATUS FOR PRODUCING HIGHLY CONDUCTIVE POLYLACTIC ACID POLYMER

摘要

The present invention relates to a method for producing polylactic acid, and more particularly, to a method for producing polylactic acid, which can increase production yield and reduce costs, and which can more conveniently produce a high molecular weight polylactic acid according to the use thereof. Also, the present invention relates to a method for producing a highly conductive polylactic acid polymer, which is economical in terms of time and cost as a highly conductive polylactic acid can be efficiently produced, and to an apparatus for producing the highly conductive polylactic acid polymer. According to the present invention, the method for producing the highly conductive polylactic acid comprises: a step S1 of adding and mixing 100 parts by weight of polylactic acid, 10 to 20 parts by weight of lactide, and 5 to 10 parts by weight of polyglycolic acid in a reaction vessel; a step S2 of adding 5 to 10 parts by weight of serine and 0.1 to 1 part by weight of dodecyl alcohol into the reaction vessel, and then feeding inert gas therein and irradiating same with electromagnetic waves; and a step S3 of adding 0.1 to 1 part by weight of acetic acid selenium into the reaction vessel, and then mixing.