Abstract
Lactic acid based polymers of medical grade were crystallized under isothermal and non-isothermal conditions from the melt. Optically pure enantiomeric polylactides, Poly(L-lactide) (PLLA) and Poly(D-lactide) (PDLA), are found to crystallize as α crystalline form. PLLA/PDLA blends were prepared by a melt mixing process and during solidification yielded both lower melting α homocrystallites and higher melting stereocomplex crystallites. The effects of isothermal and non-isothermal crystallization conditions on developed polymorphism and degree of crystallinity are evaluated for PLLA/PDLA blends.
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Sarasua, J.R., Arraiza, A.L., Balerdi, P. et al. Crystallization and thermal behaviour of optically pure polylactides and their blends. J Mater Sci 40, 1855–1862 (2005). https://doi.org/10.1007/s10853-005-1204-8
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DOI: https://doi.org/10.1007/s10853-005-1204-8