Cited by 190Membrane Separation and Gas TransportNanocomposite Films for Food Packagingbiodegradable polymer synthesis and properties

Effect of water on the oxygen barrier properties of poly(ethylene terephthalate) and polylactide films

Auras, Rafael, Harte, Bruce, Selke, Susan·2004·Journal of Applied Polymer Science

Abstract

The aim of this work was to study the variations in the oxygen diffusion, solubility, and permeability coefficients of polylactide (PLA) films at different temperatures (5, 23, and 40°C) and water activities (0–0.9). The results were compared with the oxygen diffusion, solubility, and permeability coefficients obtained for poly(ethylene terephthalate) (PET) films under the same experimental conditions. The water sorption isotherm for PLA films was also determined. Diffusion coefficients were determined with the half‐sorption time method. Also, a consistency test for continuous‐flow permeability experimental data was run to obtain the diffusion coefficient with the lowest experimental error and to confirm that oxygen underwent Fickian diffusion in the PLA films. The permeability coefficients were obtained from steady‐state permeability experiments. The results indicated that the PLA films absorbed very low amounts of water, and no significant variation of the absorbed water with the temperature was found. The oxygen permeability coefficients obtained for PLA films (2–12 × 10−18 kg m/m 2 s Pa) were higher than those obtained for PET films (1–6 × 10−19 kg m/m 2 s Pa) at different temperatures and water activities. Moreover, the permeability coefficients for PLA and PET films did not change significantly with changes in the water activity at temperatures lower than 23°C. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 92: 1790–1803, 2004

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Research works printed but not linked: 15

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  6. Baillie J., 1997, Packag Week, 13, 13
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  13. Hernandez‐Munoz P., 1998, J Membr Sci, 1
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  15. Hernandez R. J., 2000, Plastics Packaging

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Authors
Auras, R., Harte, B., & Selke, S.
Affiliations
Michigan State University (US)
Corresponding author
Auras, Rafael
Venue
Journal of Applied Polymer Science
Publisher
Wiley
Published
2004-03-02
Volume
92
Issue
3
Pages
1790-1803
ISSN
  • 0021-8995 (ISSN-L)
  • 1097-4628
OpenAlex
W2012446793
Cited by
190
References
33
Citations by year
2026: 7 · 2025: 6 · 2024: 7 · 2023: 11 · 2022: 7 · 2021: 10 · 2020: 5 · 2019: 6 · 2018: 10 · 2017: 16 · 2016: 12 · 2015: 11 · 2014: 12 · 2013: 13 · 2012: 8
FWCI
12.41
Type
journal article
Language
en
Open access
closed
Locations
Journal of Applied Polymer Science (publishedVersion)
Topics
  • Physical Sciences › Engineering › Mechanical Engineering › Membrane Separation and Gas Transport
  • Physical Sciences › Materials Science › Biomaterials › Nanocomposite Films for Food Packaging
  • Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
Keywords
oxygen permeability, PET film, polylactide films, water sorption, water activity, oxygen diffusion coefficient, oxygen solubility, moisture sorption isotherms, Fickian diffusion, temperature dependence, barrier properties

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