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Schmack, G. ; Tändler, B. ; Opitz, G. ; Komber, H. ; Häußler, L. ; Voigt, D. ; Weinmann, S. ; Heinemann, M. ; Fritz, H.-G.
High-Speed Melt Spinning of Various Grades of Polylactides

Five kinds of polylactides (PLAs), with different D-lactide contents and tacticities, were subjected to high-speed melt-spinning experiments. In addition to stereochemical purity, the PLA types differed in molecular mass and molecular mass distribution. The properties of the different PLA materials were characterized by thermogravimetry, differential scanning calorimetry, dynamic mechanical analysis, size exclusion chromatography, and 1H-NMR and 13C-NMR spectroscopy. The material was spun with a high-speed spinning process within the range 2000-5000 m/min. The physical and tensile properties of the fibers were determined. The maximum tensile properties of the fibers were a 300 MPa tenacity at an elongation at break of 30% and a tensile modulus of 6.8 GPa. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 91: 800-806, 2004

Source
Journal of Applied Polymer Science 91

Pages
800-806

DOI
http://dx.doi.org/10.1002/app.13170

Published
January 2004
 
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