Effect of Gamma Radiation on the Chemical Structure and Physical Properties of Poly(butylene terephthalate) (PBT)
Daniel Marcos-Rios, Guillermina Burillo, Rodrigo Navarro, Ángel Marcos-Fernández · 2026
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Description
Daniel Marcos-Rios and co-authors fire gamma rays at a tough engineering plastic to see how it changes. Their 2026 study doses poly(butylene terephthalate) up to very high levels. The plastic is stronger than its better-known cousin, and radiation can upgrade it, but data on the pure form were thin.
No gel formed at any dose. Chain cutting ruled up to a mid dose, shrinking molecule size, while linking took over above it. Nuclear magnetic scans showed new end groups from broken ester links. Heat traits shifted with the balance of cutting and linking. Strength and stretch fell with dose until the plastic turned brittle at the top doses used in the tests.
Catalog record
| CREATOR | Daniel Marcos-Rios, Guillermina Burillo, Rodrigo Navarro, Ángel Marcos-Fernández |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 50 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |