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Phase separation in poly(butylene terephthalate)-based materials prepared by solid-state modification

Abstract

The morphology of a series of poly(butylene terephthalate) (PBT)/fatty acid dimer diol (FADD)-based copolyesters prepared by solid-state modi fi cation (SSM) was studied. It was shown that in copolyesters containing less than 10 wt% FADD two different phases, i.e. a PBT crystalline phase and a PBT-rich amorphous phase, are present. The FADD residues were more or less homogeneously distributed throughout the interlamellar regions. For copolymers containing more than 10 wt% of FADD, a three- phase morphological model has to be used due to phase separation of a FADD-rich amorphous phase from the PBT-rich matrix, as con fi rmed by solid-state nuclear magnetic resonance spectroscopy and transmission electron microscopy. The fi nal morphology was dependent on the morphology of the PBT/ FADD-based physical mixtures prior to SSM. In addition, it was shown that FADD diffusion during SSM influences the final morphology.

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Authors (8)

  • Photo of  Erik Gubbels

    Erik Gubbels

    • Eindhoven University of Technology Department of Chemical Engineering and Chemistry
  • Photo of  Daniel Hermida-Merino

    Daniel Hermida-Merino

    • Netherlands Organization for Scientific Research (NWO) .
  • Photo of  Michael Ryan Hansen

    Michael Ryan Hansen

    • Max Planck Institute for Polymer Research .
  • Photo of  Bart Noordover

    Bart Noordover

    • Eindhoven University of Technology Department of Chemical Engineering and Chemistry
  • Photo of  Anne Spoelstra

    Anne Spoelstra

    • Eindhoven University of Technology Department of Chemical Engineering and Chemistry
  • Photo of  Han Goossens

    Han Goossens

    • Eindhoven University of Technology Department of Chemical Engineering and Chemistry
  • Photo of  Cor E. Koning

    Cor E. Koning

    • Eindhoven University of Technology Department of Chemical Engineering and Chemistry

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Details

Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
POLYMER no. 55, edition 16, pages 3801 - 3810,
ISSN: 0032-3861
Language:
English
Publication year:
2014
Bibliographic description:
Gubbels E., Jasińska-Walc L., Hermida-Merino D., Hansen M., Noordover B., Spoelstra A., Goossens H., Koning C.: Phase separation in poly(butylene terephthalate)-based materials prepared by solid-state modification// POLYMER. -Vol. 55, iss. 16 (2014), s.3801-3810
DOI:
Digital Object Identifier (open in new tab) 10.1016/j.polymer.2014.05.051
Verified by:
Gdańsk University of Technology

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