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Keywords:

  • poly(ω-pentadecalactone);
  • lipase-catalyzed polymerization;
  • poly(L-lactic acid);
  • blend film;
  • thermal/mechanical property

Abstract

Poly(ω-pentadecalactone) (PPDL) was synthesized by enzyme-catalyzed polymerization. The molecular weight of the PPDL was about 35,000. Opaque poly(L-lactic acid) (PLLA)/PPDL blend films were created by the solvent casting technique. The addition of PPDL led to PLLA crystallization. Furthermore, the addition of PPDL with PLLA increased both the Young's modulus [pure PLLA : 0.67 GPa, PLLA/PPDL (70/30 wt %) : 1.01 GPa] and the PLLA glass transition temperature. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008