ORGANIC METAL COMPOSITE, CATALYST COMPOSITION AND PREPARATION METHOD FOR POLYLACTIDE RESIN

摘要

PURPOSE: A method for manufacturing polylactide resin using organic metal complex and catalyst composition is provided to improve conversion rate of polylactide resin with excellent thermal resistance. CONSTITUTION: An organic metal complex is denoted by chemical formula 1. In chemical formula 1, M is Sn or Zn; and R1 and R3 are different or same hydrogen, substituted or non-substituted alcohol of 3-10 carbon atoms; substituted or non-substituted cyclo alkyl of 3-10 carbon atoms, and substituted or non-substituted aryl of 6-10 carbon atoms. A catalyst composition contains compounds of chemical formulas 2 and 3. A compound of chemical formula 3 is tin(II) 2-ethylhexanoate(Sn(Oct)_2). A polylactide resin is prepared by polymerizing lactide monomer under the presence of organic metal complex.