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Characterization of copolyester of polyethylene terephthalate and polyoxyethylene terephthalate by 1H NMR and GPC

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Summary

The copolyester of polyethylene terephthalate-polyoxyethylene terephthalate (PET-POET) has been characterized by 1H NMR and GPC (Gel Permeation Chromatography). The 1H NMR method provides a ready determination of the PET/POET mole ratio as well as the number of ethoxylate (EO) units in POET. Factors that may affect the accuracy of the determination are also discussed.

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Authors and Affiliations

  1. Unilever Research U.S., 45 River Road, 07020, Edgewater, NJ, USA

    Ferial Khorshahi, Samuel Lin, Arnold Jensen & David Kwoh

Authors
  1. Ferial Khorshahi
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  2. Samuel Lin
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  3. Arnold Jensen
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  4. David Kwoh
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Khorshahi, F., Lin, S., Jensen, A. et al. Characterization of copolyester of polyethylene terephthalate and polyoxyethylene terephthalate by 1H NMR and GPC. Polymer Bulletin 28, 451–458 (1992). https://doi.org/10.1007/BF00297339

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  • DOI: https://doi.org/10.1007/BF00297339

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