Crystallization behavior of poly(trimethylene terephthalate)-poly(ethylene glycol) segmented copolyesters/multi-walled carbon nanotube nanocomposites

Yong Xu, Songmin Shang, Jian Huang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

29 Citations (Scopus)

Abstract

Poly(trimethylene terephthalate)-poly(ethylene glycol) segmented copolyester (PTEG)/multi-walled carbon nanotube (MWCNT) nanocomposites with various MWCNT content and copolyester composition were prepared by solution blending and the effect of MWCNTs on the crystallization behavior of PTEG copolymers was explored by differential scanning calorimetry (DSC), depolarized light intensity (DLI) technique and polarized light microscopy (PLM). The dynamic crystallization and the crystallization morphology of the nanocomposites are discussed. The isothermal crystallization kinetics was analyzed by means of a two stage crystallization kinetics model. The results showed that MWCNTs take the role of an effective nucleating agent during composite crystallization and can expedite the process of crystallization of the PTEG matrix by providing more nucleation sites to the crystallizing phase, which results in the formation of smaller spherulites.
Original languageEnglish
Pages (from-to)1007-1013
Number of pages7
JournalPolymer Testing
Volume29
Issue number8
DOIs
Publication statusPublished - 1 Dec 2010

Keywords

  • Crystallization
  • Multi-walled carbon nanotubes
  • Nanocomposites
  • Poly(trimethylene terephthalate)-poly(ethylene glycol) segmented copolyesters

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics

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