Crystallinity and orientation development in poly(L-lactic acid) fibers during annealing and drawing

Document Type

Conference Proceeding

Publication Date

12-1-2005

Abstract

The crystallinity and orientation development in melt-spun poly(L-lactic acid) (PLLA) fibers are studied by in-situ synchrotron 2-D wide-angle x-ray scattering under various thermal and mechanical treatments. Crystalline orientation is evaluated from the azimuthal profiles of (200) and (203) diffractions. Crystallinity and orientation are found to be strongly dependent upon the take-up speeds of spinning. When fibers are heated above the glass transition, re-crystallization is observed. The effect of drawing above T g on crystallinity and orientation are also characterized.

Identifier

33644949541 (Scopus)

Publication Title

Annual Technical Conference ANTEC Conference Proceedings

First Page

87

Last Page

91

Volume

5

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