Thermal Degradation
Chain-growth polymers like poly(methyl methacrylate) can be degraded by thermolysis at high temperatures to give monomers, oils, gases and water. The degradation takes place by:
| Thermolysis type | Added material | Temperature | Pressure | Final product |
|---|---|---|---|---|
| Pyrolysis | Around 500°C | Reduced pressure | ||
| Hydrogenation | Dihydrogen | Around 450°C | Around 200 bars | |
| Gasification | Dioxygen and/or water | Under pressure | Carbon monoxide, Carbon dioxide and hydrogen |
Read more about this topic: Polymer Degradation
Famous quotes containing the word degradation:
“In her present ignorance, woman’s religion, instead of making her noble and free, by the wrong application of great principles of right and justice, has made her bondage but more certain and lasting, her degradation more hopeless and complete.”
—Elizabeth Cady Stanton (1815–1902)
Related Phrases
Related Words