• Title/Summary/Keyword: poly(${\beta}$-hydroxynonanoate)

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Thermal Properties and Crystallization of Biodegradable Poly(L-lactic acid) and Poly($\beta$-hydroxynonanoate) Blend (생분해성 Poly(L-lactic acid)/Poly($\beta$-hydroxynonanoate) 블렌드의 열적 성질 및 결정화거동)

  • 박상혁;김영백;이두성
    • Polymer(Korea)
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    • v.24 no.4
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    • pp.477-487
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    • 2000

  • A series of poly(L-lactic acid) (PLLA)/poly($\beta$-hydroxynonanoate) (PHN) blend were prepared to study the miscibility and the crystallization behaviors. The thermal behaviors and characterization of PLLA/PHN blends Were studied using differential scanning calorimetry (DSC), XRD and polarizing optical microscopy (POM). The PLLA and PHN are partially miscible in amorphous region. The crystallinity of PLLA increased as the content of PHN increased, and T$_{g}$, T$_{c}$, and T$_{m}$ of PLLA shift as the content of PHN increased. Moreover, the number of PLLA spherulite increased as the content of PHN increased in the POM experiment. Thus, PHN acted as a nucleating agent to PLLA.

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