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Issue
Korean Journal of Chemical Engineering,
Vol.25, No.3, 599-608, 2008
Effect of biobased and biodegradable nucleating agent on the isothermal crystallization of poly(lactic acid)
Kang KS, Lee SI, Lee TJ, Narayan R, Shin BY
The effect of chemically modified thermoplastic starch (CMPS) on the thermal properties and isothermal crystallization kinetics of poly(lactic acid) (PLA) was studied by differential scanning calorimetry (DSC) and compared to that of granular starch and an inorganic nucleating agent, talc. Nucleated PLA showed an additional crystallization of PLA, which affected the melting temperature. The crystallinity and crystallization rate of PLA were considerably enhanced by addition of CMPS, even at 0.1% content, and the amount of the CMPS had little effect on the thermal properties and isothermal crystallization kinetics of PLA. The effect of CMPS as a nucleating agent was comparable to that of granular starch but slightly less than that of talc. However, CMPS can offer a fully biodegradable nucleating agent with no residues remaining for the biobased and biodegradable polymers.
Keywords: Poly(lactic acid); Nucleating Agent; Isothermal Crystallization; Chemically Modified Thermoplastic Starch
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[Cited By]
  1. Lee SH, Choi SH, Choi JI, Lee JR, Youn JR, Korean Journal of Chemical Engineering, 27(2), 658, 2010
  2. Lee JY, Lee KH, Chae HJ, Kim JH, Korean Journal of Chemical Engineering, 27(5), 1538, 2010
  3. Jang NR, Kim BS, Korean Chemical Engineering Research, 50(6), 1064, 2012
  4. Hong JH, Haam SJ, Lim GB, Ryu JH, Macromolecular Research, 28(3), 257, 2020
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