Infrared Spectrum of Poly(l-lactide): Application to Crystallinity Studies
作者： E. Meaurio , N. López-Rodríguez , J. R. Sarasua
DOI: 10.1021/MA061890R
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摘要: The spectrum of PLLA is analyzed in order to investigate its crystallinity and crystalline morphologies. carbonyl ester bands have been analyzed, individual components successfully assigned. Nucleation always proceeds through curved lamellar crystals, this morphology being exclusive for low crystallization temperatures. At higher temperatures, a transition from crystals flat lozenge-shaped lamellae observed. Curved with edge-on orientation flat-on affect the intensity spectral bands. total has obtained skeletal band at 955 cm-1. In addition, changes observed CO stretching region during provide simple procedure obtain relative population two As temperature increases, decrease, but their remains i...
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