PREPARACIÓN Y CARACTERIZACIÓN DE ESTEREOCOMPLEJOS DE PLLA/PDLA EN PRESENCIA DE BLOQUES FLEXIBLES

Authors

  • Rosa M. D`Ambrosio
  • Rose M. Michell
  • Alejandro J. Müller
  • Philippe Dubois

Abstract

We studied the stereocomplex formation from homopolymers and (PLA)s/PBS multiblock copolymers to analyze the influence of the poly(butylene succinate) (PBS) flexible block on the stereocomplex formation, structure and properties. LL705.4BS307.4 and DL706.1BS307.4 copolymers presented a single crystallization process associated with PLA crystallization. On the other hand LL205.4BS807.4 and DL206.1BS807.4 copolymers exhibited two crystallization processes. The IR spectrum band at 909 cm-1, associated with stereocomplex formation, was observed for stereocomplexes from homopolymer-copolymer blends with a major proportion corresponding to the PLA block copolymer. DSC evidenced the difficulty of stereocomplex formation via homopolymer-copolymer mixtures with minor proportions of (PLA)s in the copolymer. Copolymer-copolymer blends were the most favored condition to stereocomplex formation from solution.

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Published

2014-04-26

How to Cite

D`Ambrosio, R. M., Michell, R. M., Müller, A. J., & Dubois, P. (2014). PREPARACIÓN Y CARACTERIZACIÓN DE ESTEREOCOMPLEJOS DE PLLA/PDLA EN PRESENCIA DE BLOQUES FLEXIBLES. LatinAmerican Journal of Metallurgy and Materials, (1), 35–36. Retrieved from https://rlmm.org/ojs/index.php/rlmm/article/view/595

Issue

2014, S6

Section

Supplementary Articles

License

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