Gas Barrier Properties of Polymeric Materials

Permeability ...................................................................................335 9.3.2 Measurement of Oxygen Transmission Rate............................337

9.4 Polymer Modification ...............................................................................340 9.4.1 Orientation .....................................................................................340 9.4.2 Polymer Blend ...............................................................................341

Acknowledgments ..............................................................................................344 References.............................................................................................................344

Within the last few decades, barrier polymers have been increasingly in demand, especially in packaging industries. They are polymers with low permeability coefficients capable of restricting the passage of gases, vapors, and organic liquids. In comparison with glass and metal food containers, plastic packages are more permeable to gases, water vapor, and aroma compounds;