Neat PMP examples of modulus retention versus temperature C

Polymethylpentene is sensitive to pro-oxidant metals such as copper but protective masterbatches are marketed. 

The glass transition temperatures of polymethylpentenes by DSC measurements are generally in the room temperature range, from 20°C up to 30°C. The glass temperatures by DTMA measurements can be higher, depending on the frequency. 

These results relate to some grades only and cannot be generalized. 

Transparency is one of the main advantages of polymethylpentenes and some grades are especially designed for high light transmission, for example 90-92%. Let us remember that transmission data are of the order of 98% for polystyrene. 

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Figure 4.18 (a) Neat PMP examples of stress at yield retention (%) versus temperature (°C) (b) Neat PMP examples of modulus retention (%) versus temperature (°C)... 

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