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Mass transfer study of chlorine dioxide gas through polymeric packaging materials
Author(s) -
Netramai Siriyupa,
Rubino Maria,
Auras Rafael,
Annous Bassam A.
Publication year - 2009
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.30869
Subject(s) - ethylene , vinyl chloride , vinyl alcohol , materials science , chlorine dioxide , permeation , polyethylene terephthalate , polymer chemistry , polyethylene , food packaging , chemical engineering , oxidizing agent , lactic acid , vinyl acetate , polystyrene , solubility , ethylene vinyl acetate , polymer , organic chemistry , chemistry , membrane , composite material , biochemistry , food science , engineering , copolymer , catalysis , biology , bacteria , genetics
The mass transfer profile (permeability, diffusion, and solubility coefficients) of chlorine dioxide (ClO 2 ), a strong oxidizing agent that is used in food and pharmaceutical packaging, was determined through various common polymeric packaging materials. A continuous system for measuring permeation of ClO 2 , using an electrochemical detector, was developed. It was observed that biaxially‐oriented poly(propylene), poly(ethylene terephthalate), poly(lactic acid), nylon, and a multilayer structure of ethylene vinyl acetate and ethylene vinyl alcohol were better barriers for gaseous ClO 2 , as compared to polyethylene, poly(vinyl chloride), and polystyrene. The activation energies of permeation for ClO 2 through poly(ethylene terephthalate) and poly(lactic acid) were determined to be 51.05 ± 4.35 and 129.03 ± 2.82 kJ/mol, respectively. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, , 2009