Blends of poly(L‐lactic acid) with poly(ω‐pentadecalactone) synthesized by enzyme‐catalyzed polymerization |
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| Authors: | Koji Nakane Chiharu Tamaki Yoshihiro Hata Takashi Ogihara Nobuo Ogata |
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| Affiliation: | Materials Science and Engineering Course, Graduate School of Engineering, University of Fukui, Bunkyo 3‐9‐1, Fukui 910‐8507, Japan |
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| 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 |
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| Keywords: | poly(ω ‐pentadecalactone) lipase‐catalyzed polymerization poly(L‐lactic acid) blend film thermal/mechanical property |
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