EVOHs examples of properties

Ionic groups tend to cluster together, building a physical crosslinking that is thermally reversible. 

Properties depend on the amount of methacrylic acid, the type and level of metallic ions, the crystallinity, the molecular weight and the polarity. 

Applications are curbed by low rigidity, weak HDTs and melting points, a propensity for electrostatic and dust build-up, poor creep resistance, limited resistance to acids, a certain lack of sources, and the cost. 

Applications are far fewer than for polyethylene and polypropylene. Consequently, relatively few grades are marketed, corresponding to the major applications such as, for example  

The melting points are low, ranging from 72°C up to 96°C, with HDT (0.46 MPa) as low as 40° C to 48° C, which limits the applications when the temperature rises, even in the absence of mechanical loading. 

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