Macromolecular Research

The Polymer Society of Korea (한국고분자학회)
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Reaction Kinetics for the Synthesis of Oligomeric Poly (lactic acid)

  • Yoo Dong Keun (Department of Chemical Engineering, Polymer Technology Institute, Sungkyunkwan University) ;
  • Kim Dukjoon (Department of Chemical Engineering, Polymer Technology Institute, Sungkyunkwan University) ;
  • Lee Doo Sung (Department of Polymer Engineering, Polymer Technology Institute, Sungkyunkwan University)
  • Published : 2005.02.01
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Abstract

A low-molecular-weight poly(lactic acid) was synthesized through the condensation reaction of L-lactic acid. The effects that the catalyst and temperature have on the reaction rate were studied to determine the optimum reaction conditions. The reaction kinetics increased with temperature up to $210^{\circ}C$, but no further increase was observed above this temperature. Among a few selective catalysts, sulfuric acid was the most effective because it maximized the polymerization reaction rate. Reduction of the pressure was another important factor that enhanced this reactions kinetics.

Keywords

References

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