Degradation Behaviors of Poly(l-lactide) using Model Systems

Min, Seong-Kee; Moon, Myong-Jun; Lee, Won‐Ki

doi:10.5322/jes.2006.15.2.177

Journal of Environmental Science International

2006

DOI: 10.5322/jes.2006.15.2.177

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Degradation Behaviors of Poly(l-lactide) using Model Systems

Seong-Kee Min¹,

Myong-Jun Moon²,

Won‐Ki Lee³

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2014

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Morphological Study on Mechanical Deformation and Alkaline Hydrolysis of Solution-Grown Poly(l-lactide) Crystals

Jung

Park

et al. 2014

Molecular Crystals and Liquid Crystals

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Biodegradable poly(l-lactide) (l-PLA) solution-grown crystals (SGC), which are the lozenge-shaped morphology of unique dimension with one side of 12 µm, were grown from dilute solution of acetonitrile. Morphological changes by alkaline degradation and mechanical deformation of PLLA SGC were investigated by atomic force microscopy. Although their enzymatic degradation did not show the change of molecular weight, alkaline hydrolysis of the crystals showed strong fragment of small molecular weights. The mechanical deformation of crystals on PET film by elongation showed the microcracks which were almost perpendicular to the elongation direction. These results indicate that alkaline hydrolysis at initial stage occurred in the chain-folding surface and the remained chains were rapidly eroded in small lozenge shape.

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Morphological Study on Mechanical Deformation and Alkaline Hydrolysis of Solution-Grown Poly(l-lactide) Crystals

Jung

Park

et al. 2014

Molecular Crystals and Liquid Crystals

Self Cite

View full text Add to dashboard Cite

show abstract

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Degradation Behaviors of Poly(l-lactide) using Model Systems

Cited by 1 publication

References 20 publications

Morphological Study on Mechanical Deformation and Alkaline Hydrolysis of Solution-Grown Poly(l-lactide) Crystals

Morphological Study on Mechanical Deformation and Alkaline Hydrolysis of Solution-Grown Poly(l-lactide) Crystals

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